BLUES

Summer Birthday

#BBD5EF

RGB 187, 213, 239 · HSL 210°, 62%, 84% · CMYK 22, 11, 0, 6

Summer Birthday is #BBD5EF in HEX — rgb(187, 213, 239), hsl(210°, 62%, 84%), cmyk(22%, 11%, 0%, 6%).

Summer Birthday pulls into the airy end of the blues spectrum — HSL 210°, 62%, 84%. 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#BBD5EF

RGB187, 213, 239

HSL210°, 62%, 84%

HSV210°, 22%, 94%

CMYK22, 11, 0, 6

Decimal12309999

CSS RGBrgb(187, 213, 239)

CSS HSLhsl(210, 62%, 84%)

Paint Matches — this color across 16 brands

Dulux

Island Light Half S39H1H

ΔE 1.4 · #BBD7EF

Benjamin Moore

Windmill 2067-60

ΔE 1.5 · #BDD3EE

Behr

Hyacinth Tint 590E-3

ΔE 1.8 · #BBD3EA

Hallman-Lindsay

Modern Blue 608

ΔE 1.9 · #BAD1E9

Vista Paint

Modern Blue C-607

ΔE 2.3 · #BBD1E8

Valspar

Gentle Wind 4006-9B

ΔE 2.4 · #B7D6ED

Dunn-Edwards

Oh Boy! DE5862

ΔE 2.9 · #BBDAF8

Dutch Boy

Simply Sparkling DCP-0594

ΔE 3.4 · #BCCEE6

Kilz

Soothing Melody RC200-01

ΔE 3.8 · #C4D5EA

PPG

Touch Of Blue 1242-2

ΔE 4.5 · #C2D7E9

Sherwin-Williams

Wondrous Blue SW6807

ΔE 6.1 · #B8CDDD

IKEA

IKEA049 49

ΔE 7.1 · #D2DCEF

Colorhouse

Dream .03 Dream-03

ΔE 7.3 · #B4CBD9

Farrow & Ball

Lulworth Blue 89

ΔE 11.3 · #A1B8CA

Kobra

Blue 27

ΔE 15.6 · #87C8D7

RAL

Telegrey 4 7047

ΔE 16 · #D0D0D0

Light Reflectance & Undertone

Light Reflectance Value (LRV)

64/100

Light

0 · DarkLight · 100

Reflects plenty of light and keeps spaces feeling open and airy while still showing clear colour. A safe, flexible choice for living areas.

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

#BBD5EF

#EFD6BD

Analogous

#BDEFEF

#BBD5EF

#BDBDEF

Triadic

#BBD5EF

#EFBDD6

#D6EFBD

Split-Complementary

#BBD5EF

#EFBDBD

#EFEFBD

Tetradic

#BBD5EF

#EFBDEF

#EFD6BD

#BDEFBD

Monochromatic

#418AD2

#7FB0E1

#BBD5EF

#EAF2FA

Rectangle

#BBD5EF

#D6BDEF

#EFD6BD

#D6EFBD

Compound

#BBD5EF

#BDBDEF

#EFD6BD

#EFEFBD

Variations

Lighter

#CADEF3

#DAE7F3

#EBF1F7

Darker

#75ABE2

#2576C6

#144575

Saturation

#CFD6DE

#BDD6EF

#B5D6F7

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

1.51:1

Fail

vs Black

13.88:1

AAA

Deuteranopia

#BBD5EF

#C6CFF0

Original → Simulated

Protanopia

#BBD5EF

#D1D1EC

Original → Simulated

Tritanopia

#BBD5EF

#B9D9D5

Original → Simulated

Color Psychology

Focused · Cooling

Summer Birthday 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

#CCCCCE

Warm Bulb 2700K

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

#BBD5EF

Daylight 5500K

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

#B9D1F3

Cool Bulb 6500K

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

Pairs With

#E8EBED

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.

#DDB690

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) · Semi-gloss (trim) · Flat (ceiling)

Light tones absorb less light than expected — eggshell adds warmth on walls, semi-gloss gives trim crisp definition against pale walls.

Best Surfaces

Primary walls · Trim · Ceilings · 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; pale colors typically need 2 coats for full opacity.

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: #BBD5EF;

CSS — background

background-color: #BBD5EF;

CSS Variable

--color-summer-birthday: #BBD5EF;

Tailwind v3 — config

colors: { 'summer-birthday': '#BBD5EF' }

Tailwind — arbitrary

bg-[#BBD5EF] text-[#BBD5EF]

SCSS

$summer-birthday: #BBD5EF;

Similar Colors

Windmill Wings

#BCD2ED · ΔE 1.6

Jet Stream

#C0D7E8 · ΔE 4.9

Sapphireberry

#B1D6EA · ΔE 5.0

Blue Ice

#BACBDF · ΔE 5.2

Bluebelle

#A8D5EF · ΔE 6.0

Mineral Springs

#AED3E5 · ΔE 6.0

Little Boy Blue

#ACD5E9 · ΔE 6.1

Mediterranean Breeze

#B7D4E2 · ΔE 6.6

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 #BBD5EF?

#BBD5EF is Summer Birthday, a soft blue with a cool undertone.

Is #BBD5EF warm or cool?

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

What rooms work best with Summer Birthday?

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

What colors pair well with Summer Birthday?

Summer Birthday 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 Birthday?

You can download Summer Birthday 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 Birthday?

The hex code is #BBD5EF. In RGB it's 187, 213, 239, and in HSL it's 210°, 62%, 84%.

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