BLUES

Summer Air

#3FAFCF

RGB 63, 175, 207 · HSL 193°, 60%, 53% · CMYK 70, 15, 0, 19

Summer Air is #3FAFCF in HEX — rgb(63, 175, 207), hsl(193°, 60%, 53%), cmyk(70%, 15%, 0%, 19%).

Summer Air pulls into the mid-tone end of the blues spectrum — HSL 193°, 60%, 53%. 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#3FAFCF

RGB63, 175, 207

HSL193°, 60%, 53%

HSV193°, 70%, 81%

CMYK70, 15, 0, 19

Decimal4173775

CSS RGBrgb(63, 175, 207)

CSS HSLhsl(193, 60%, 53%)

Paint Matches — this color across 16 brands

Vista Paint

Epimethius C-659

ΔE 2.3 · #4DB2D3

Dulux

Dragon Fly Blue S33F3

ΔE 2.8 · #45AFCA

Hallman-Lindsay

Epimethius 660

ΔE 2.8 · #4BB2D5

Kilz

Bit Of Sapphire RD230-02

ΔE 3.2 · #52B2D3

Valspar

Ocean Sigh 5002-10A

ΔE 3.3 · #51AECE

Behr

Jet Ski M490-5

ΔE 3.6 · #4DB0CA

Kobra

Blue 28

ΔE 3.8 · #4EB3CD

Dunn-Edwards

Frozen Wave DE5829

ΔE 4.5 · #56ACCA

Benjamin Moore

Atlantis 768

ΔE 5.1 · #55B2CA

Sherwin-Williams

Flyway SW6794

ΔE 5.2 · #5DB3D4

PPG

Mystic Blue 1237-5

ΔE 6.5 · #48A8D0

Farrow & Ball

St Giles Blue 280

ΔE 11.3 · #599EC4

Dutch Boy

Sky Blue D-6742

ΔE 11.7 · #7AC2D8

IKEA

IKEA084 84

ΔE 16.5 · #83AAC1

RAL

Pastel Blue 5024

ΔE 20.3 · #5D9B9B

Colorhouse

Dream .04 Dream-04

ΔE 25.4 · #9CC7C4

Light Reflectance & Undertone

Light Reflectance Value (LRV)

36/100

Medium

0 · DarkLight · 100

Balanced reflectance — holds colour without washing out. Versatile for most rooms and the most forgiving range for true-to-chip results.

Undertone

TemperatureCool MasstoneTeal UndertoneGreen

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

Color Theory

Complementary

#3FAFCF

#CF5E3F

Analogous

#3FCFA6

#3FAFCF

#3F68CF

Triadic

#3FAFCF

#CF3FB0

#B0CF3F

Split-Complementary

#3FAFCF

#CF3F68

#CFA63F

Tetradic

#3FAFCF

#A63FCF

#CF5E3F

#68CF3F

Monochromatic

#174F5E

#27829B

#3FAFCF

#7CC9DE

#BAE2EE

Rectangle

#3FAFCF

#5E3FCF

#CF5E3F

#B0CF3F

Compound

#3FAFCF

#3F68CF

#CF5E3F

#CFA63F

Variations

Lighter

#66C0D9

#92CCDC

#C3DFE7

Darker

#2893B0

#19667B

#0D3C49

Saturation

#72939D

#3FB0CF

#27BDE7

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

2.55:1

Fail

vs Black

8.24:1

AAA

Deuteranopia

#3FAFCF

#8599D1

Original → Simulated

Protanopia

#3FAFCF

#A3A3CB

Original → Simulated

Tritanopia

#3FAFCF

#3CB3AD

Original → Simulated

Color Psychology

Focused · Cooling

Summer Air 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

#6FB0B6

Warm Bulb 2700K

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

#3FAFCF

Daylight 5500K

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

#5CB5DB

Cool Bulb 6500K

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

Pairs With

#E8ECED

Trim

Matched off-white

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

#F7F8F8

Ceiling

Whisper tint

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

#AD5238

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 · Trim · Soft furniture

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: #3FAFCF;

CSS — background

background-color: #3FAFCF;

CSS Variable

--color-summer-air: #3FAFCF;

Tailwind v3 — config

colors: { 'summer-air': '#3FAFCF' }

Tailwind — arbitrary

bg-[#3FAFCF] text-[#3FAFCF]

SCSS

$summer-air: #3FAFCF;

Similar Colors

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#54B1C9 · ΔE 5.0

Dream I Can Fly

#1FA0C1 · ΔE 5.7

Yosemite Blue

#17A1C8 · ΔE 6.7

Blue Belle Island

#5EABD1 · ΔE 8.2

Cool Blue

#419AB7 · ΔE 8.4

Baltimore Sky

#45ADBE · ΔE 8.6

Toronto Blue

#199FCC · ΔE 9.7

Bahaman Sea Blue

#12ABBE · ΔE 9.8

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 #3FAFCF?

#3FAFCF is Summer Air, a mid-tone blue with a cool undertone.

Is #3FAFCF warm or cool?

Summer Air reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Summer Air?

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

What colors pair well with Summer Air?

Summer Air 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 Summer Air?

You can download Summer Air 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 Summer Air?

The hex code is #3FAFCF. In RGB it's 63, 175, 207, and in HSL it's 193°, 60%, 53%.

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