BLUES

Cotton Boll

#E7EFFB

RGB 231, 239, 251 · HSL 216°, 71%, 95% · CMYK 8, 5, 0, 2

Cotton Boll is #E7EFFB in HEX — rgb(231, 239, 251), hsl(216°, 71%, 95%), cmyk(8%, 5%, 0%, 2%).

Cotton Boll pulls into the airy end of the blues spectrum — HSL 216°, 71%, 95%. The saturated saturation makes it bold and immediate, 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#E7EFFB

RGB231, 239, 251

HSL216°, 71%, 95%

HSV216°, 8%, 98%

CMYK8, 5, 0, 2

Decimal15200251

CSS RGBrgb(231, 239, 251)

CSS HSLhsl(216, 71%, 95%)

Paint Matches — this color across 16 brands

Behr

Genteel Lavender 600E-1

ΔE 1.3 · #E6F0FA

Dunn-Edwards

First Snow DEW390

ΔE 1.6 · #E8EFF8

Benjamin Moore

White 2068-70

ΔE 3.3 · #E3E6F2

Vista Paint

Moondancing K-102

ΔE 3.7 · #DDE5EF

Kilz

White Majestic RC220-01

ΔE 3.9 · #DFE7EE

Dulux

Ace Quarter S42G1Q

ΔE 4.2 · #DFE3F0

PPG

Iceberg 1164-2

ΔE 4.2 · #DAE4EE

Valspar

Moonbeam 4005-7A

ΔE 4.3 · #E5ECF0

Hallman-Lindsay

Cool Sky 601

ΔE 4.5 · #DBE4EC

IKEA

IKEA047 47

ΔE 5.1 · #DDE9ED

Sherwin-Williams

Wishful Blue SW6813

ΔE 6.4 · #D8DDE6

Colorhouse

Air .06 Air-06

ΔE 6.9 · #D7E2E5

RAL

Signal White 9003

ΔE 7 · #F4F4F4

Dutch Boy

Tinge Grey VS-9117

ΔE 8 · #E2E2E2

Farrow & Ball

Cabbage White 269

ΔE 8.3 · #E8EEEA

Kobra

White 01

ΔE 9.8 · #EAEAE4

Light Reflectance & Undertone

Light Reflectance Value (LRV)

86/100

Very Light

0 · DarkLight · 100

Bounces most light back into the room — maximises brightness and makes small or north-facing rooms feel larger. Reads close to a soft neutral.

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

#E7EFFB

#FBF4E9

Analogous

#E9F9FB

#E7EFFB

#EBE9FB

Triadic

#E7EFFB

#FBE9F0

#F0FBE9

Split-Complementary

#E7EFFB

#FBEBE9

#F9FBE9

Tetradic

#E7EFFB

#FBE9F9

#FBF4E9

#E9FBEB

Monochromatic

#6699E5

#A8C5F0

#E7EFFB

#E9F0FB

Rectangle

#E7EFFB

#F4E9FB

#FBF4E9

#F0FBE9

Compound

#E7EFFB

#EBE9FB

#FBF4E9

#F9FBE9

Variations

Lighter

#EEF3FC

#F3F6FC

#F8FAFD

Darker

#94B9EF

#2672E4

#0E418D

Saturation

#F0F2F5

#E9F0FB

#E7F0FD

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

1.16:1

Fail

vs Black

18.14:1

AAA

Deuteranopia

#E7EFFB

#EAEDFC

Original → Simulated

Protanopia

#E7EFFB

#EEEEF9

Original → Simulated

Tritanopia

#E7EFFB

#E6F1EF

Original → Simulated

Color Psychology

Focused · Cooling

Cotton Boll 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

#EDE0D7

Warm Bulb 2700K

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

#E7EFFB

Daylight 5500K

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

#DAE5FC

Cool Bulb 6500K

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

Pairs With

#E8EAED

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.

#E6C799

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: #E7EFFB;

CSS — background

background-color: #E7EFFB;

CSS Variable

--color-cotton-boll: #E7EFFB;

Tailwind v3 — config

colors: { 'cotton-boll': '#E7EFFB' }

Tailwind — arbitrary

bg-[#E7EFFB] text-[#E7EFFB]

SCSS

$cotton-boll: #E7EFFB;

Similar Colors

White Heaven

#E2E5F1 · ΔE 3.6

Polar White

#E8E8EF · ΔE 4.2

White Satin

#D7E5F2 · ΔE 4.4

Whisper Violet

#E5E5ED · ΔE 4.5

Sweet Bluette

#D7E5EB · ΔE 5.6

Lily White

#E3E9EB · ΔE 5.6

Nosegay

#E0E1E8 · ΔE 5.7

Cumulus Cotton

#D3E8F1 · ΔE 5.9

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 #E7EFFB?

#E7EFFB is Cotton Boll, a light blue with a cool undertone.

Is #E7EFFB warm or cool?

Cotton Boll reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Cotton Boll?

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

What colors pair well with Cotton Boll?

Cotton Boll 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 Cotton Boll?

You can download Cotton Boll 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 Cotton Boll?

The hex code is #E7EFFB. In RGB it's 231, 239, 251, and in HSL it's 216°, 71%, 95%.

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