BLUES

Summerday Blue

#376698

RGB 55, 102, 152 · HSL 211°, 47%, 41% · CMYK 64, 33, 0, 40

Summerday Blue is #376698 in HEX — rgb(55, 102, 152), hsl(211°, 47%, 41%), cmyk(64%, 33%, 0%, 40%).

Summerday Blue pulls into the rich end of the blues spectrum — HSL 211°, 47%, 41%. The balanced saturation makes it confident without overpowering, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, home offices — for calm, focused environments. Reads best alongside warm white trim, oak or walnut, brass or matte black hardware.

Color Codes

HEX#376698

RGB55, 102, 152

HSL211°, 47%, 41%

HSV211°, 64%, 60%

CMYK64, 33, 0, 40

Decimal3630744

CSS RGBrgb(55, 102, 152)

CSS HSLhsl(211, 47%, 41%)

Paint Matches — this color across 16 brands

Dulux

Blue Regatta S39F7

ΔE 0.8 · #376598

PPG

Teeny Bikini 1162-6

ΔE 1.3 · #326395

Kilz

Beyond The Sea RH200

ΔE 1.5 · #346696

Benjamin Moore

Old 811

ΔE 2.6 · #3A6A99

Dunn-Edwards

The Blues DE5859

ΔE 3.5 · #296A9D

Behr

Mesmerize 590F-6

ΔE 4.9 · #375C90

RAL

Brillant Blue 5007

ΔE 5.3 · #3E5F8A

Valspar

Vivid Blue 4006-10C

ΔE 5.9 · #3E6AA5

Vista Paint

Bowen Blue C-1376

ΔE 5.9 · #246CA6

Sherwin-Williams

Hyper Blue SW6965

ΔE 6.5 · #015F97

Hallman-Lindsay

Glacier Bay historic-glacier-bay

ΔE 7 · #005C94

Kobra

Blue 30

ΔE 7.6 · #195584

IKEA

IKEA128 128

ΔE 9 · #4A72B0

Farrow & Ball

Pitch Blue 220

ΔE 14 · #636E8F

Dutch Boy

Blue Sea VS-9451

ΔE 16.5 · #2D61AD

Colorhouse

Petal .05 Petal-05

ΔE 20.4 · #1F4992

Light Reflectance & Undertone

Light Reflectance Value (LRV)

13/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

Undertone

TemperatureCool MasstoneBlue UndertoneViolet

Reads as a cool blue with a violet undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#376698

#9A6A37

Analogous

#37989A

#376698

#39379A

Triadic

#376698

#9A3767

#679A37

Split-Complementary

#376698

#9A3937

#989A37

Tetradic

#376698

#9A3798

#9A6A37

#379A39

Monochromatic

#0F1C29

#234161

#376698

#5A8DC4

#92B4D8

Rectangle

#376698

#6A379A

#9A6A37

#679A37

Compound

#376698

#39379A

#9A6A37

#989A37

Variations

Lighter

#4E85BF

#81A4C9

#B9CADC

Darker

#2A527D

#1C3957

#0F2134

Saturation

#5A6877

#37679A

#1C66B5

Interior Use

Best Rooms

bedrooms, bathrooms, home offices

Best Uses

main walls, ceilings, trim, cabinetry

Pairs With

warm white trim, oak or walnut, brass or matte black hardware

Accessibility (WCAG)

vs White

5.97:1

vs Black

3.52:1

AA Large

Deuteranopia

#376698

#486099

Original → Simulated

Protanopia

#376698

#606093

Original → Simulated

Tritanopia

#376698

#2D6F68

Original → Simulated

Color Psychology

Focused · Cooling

Summerday Blue lowers the temperature of a room — useful in south-facing rooms that overheat visually, and in home offices where you want a clear head. Pair with warm wood and brass to keep it from reading clinical.

SymbolismTrust, depth, stability

PersonalityClear-headed, dependable, contemplative

focustrustcalmofficebedroomdepth

How it looks under different light

#69798D

Warm Bulb 2700K

Incandescent / soft white LED — pulls colour toward yellow/amber.

#376698

Daylight 5500K

Midday natural light or daylight-spec LED — closest to the paint chip.

#567EB1

Cool Bulb 6500K

Cool white LED / overcast daylight — pulls colour toward blue.

Pairs With

#E9EBEC

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F7F8

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#7C5A35

Accent

Complementary punch

Hue +180°, slightly muted for paint vs. screen — use on a door, frame, or single piece.

#574738

Floor

Walnut neutral

Warm mid-brown grounds the scheme regardless of hero hue.

Paint Info

Brand · Product Line

Benjamin Moore / Regal Select Interior

Recommended Finishes

Eggshell (walls) · Pearl (trim) · Matte (ceiling)

Eggshell hides imperfections on main walls while keeping the color rich; pearl on trim adds subtle sheen and easier cleaning; flat matte on ceilings prevents glare.

Best Surfaces

Primary walls · Cabinetry · Doors · Mouldings

Coverage & Dry Time

Typical coverage 350-400 sq ft per gallon over a primed surface.

Touch-dry in ~1 hour. Recoat after 4 hours. Full cure 7-14 days.

Primer

Standard primer is adequate.

Application Tip

Use a 9" microfiber roller on walls and a 2.5" angled sash brush for trim cuts. Two coats minimum for even depth.

Paint Calculator

Wall area (m²)

Coats

Coverage (m² / L)

You'll need

4.0 litres

1.06 US gallons · room for one touch-up coat. Buy slightly more to ensure single-batch match.

Code Snippets

CSS — color

color: #376698;

CSS — background

background-color: #376698;

CSS Variable

--color-summerday-blue: #376698;

Tailwind v3 — config

colors: { 'summerday-blue': '#376698' }

Tailwind — arbitrary

bg-[#376698] text-[#376698]

SCSS

$summerday-blue: #376698;

Similar Colors

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#396998 · ΔE 2.4

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#3D74AC · ΔE 6.3

Blue Suede Shoes

#2F5688 · ΔE 6.7

Blueberry

#1A5E89 · ΔE 7.0

Winter's Eve

#40729C · ΔE 7.3

Nile Blue

#4E719A · ΔE 7.6

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#006EA1 · ΔE 8.0

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#1369A7 · ΔE 8.0

Built by DSGN.HOUSE Updated 2026

Our color tools run on our own catalogue of 26,000+ real paint colors across 16 brands — Benjamin Moore, Sherwin-Williams, Behr, Dulux, RAL and more — with the color math (HSL and CIELAB matching) computed in-house, not scraped from summaries. Every color you pick maps to a real, buyable paint with its code, so what you see here you can actually take to the store. We review and update these tools and their data regularly.

Created by Denis Kataev, founder of DSGN.HOUSE — a software engineer and digital entrepreneur building professional color-design tools for everyone.

Frequently Asked Questions

What color is #376698?

#376698 is Summerday Blue, a mid-tone blue with a cool undertone.

Is #376698 warm or cool?

Summerday Blue reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Summerday Blue?

Summerday Blue works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with Summerday Blue?

Summerday Blue pairs naturally with warm white trim, oak or walnut, brass or matte black hardware. Its complementary color is also a strong contrast option for accents.

Where can I download Summerday Blue?

You can download Summerday Blue on DSGN.HOUSE in 15 designer formats including CSS gradient, Figma, Procreate swatches, Tailwind config, Adobe ASE, SVG, and 4K wallpapers — all free.

What's the hex code for Summerday Blue?

The hex code is #376698. In RGB it's 55, 102, 152, and in HSL it's 211°, 47%, 41%.

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