BLUES

Cosimo

#C6D8E8

RGB 198, 216, 232 · HSL 208°, 42%, 84% · CMYK 15, 7, 0, 9

Cosimo is #C6D8E8 in HEX — rgb(198, 216, 232), hsl(208°, 42%, 84%), cmyk(15%, 7%, 0%, 9%).

Cosimo pulls into the airy end of the blues spectrum — HSL 208°, 42%, 84%. The muted saturation makes it quiet but present, 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#C6D8E8

RGB198, 216, 232

HSL208°, 42%, 84%

HSV208°, 15%, 91%

CMYK15, 7, 0, 9

Decimal13031656

CSS RGBrgb(198, 216, 232)

CSS HSLhsl(208, 42%, 84%)

Paint Matches — this color across 16 brands

Dulux

Cosimo SP2F7

Exact match

Behr

Celestial Light MQ3-24

ΔE 0.3 · #C5D8E8

Kilz

Idyllic Blue RC240-01

ΔE 1.1 · #C7D6E6

Benjamin Moore

Misty 820

ΔE 1.5 · #C8D6E5

PPG

Touch Of Blue 1242-2

ΔE 1.5 · #C2D7E9

Vista Paint

Fluid Blue C-601

ΔE 1.7 · #C5D6E9

Dunn-Edwards

Alaskan Skies DE5876

ΔE 2 · #CDDCED

Hallman-Lindsay

Simple Serenity 614

ΔE 2.1 · #C8D9E5

IKEA

IKEA050 50

ΔE 2.2 · #C6D7E3

Valspar

Cool Hue 4005-9B

ΔE 2.3 · #CEDBEC

Colorhouse

Sprout .03 Sprout-03

ΔE 3.1 · #CCDCE7

Sherwin-Williams

Breathtaking SW6814

ΔE 3.4 · #C7D1E2

Dutch Boy

Simply Sparkling DCP-0594

ΔE 5.5 · #BCCEE6

Farrow & Ball

Borrowed Light 235

ΔE 9.3 · #D5DBDB

RAL

Papyrus White 9018

ΔE 10.3 · #D7D7D7

Kobra

Silver 47

ΔE 10.9 · #CDCECD

Light Reflectance & Undertone

Light Reflectance Value (LRV)

67/100

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

#C6D8E8

#E7D5C5

Analogous

#C5E7E6

#C6D8E8

#C5C6E7

Triadic

#C6D8E8

#E7C5D7

#D7E7C5

Split-Complementary

#C6D8E8

#E7C5C6

#E7E6C5

Tetradic

#C6D8E8

#E6C5E7

#E7D5C5

#C6E7C5

Monochromatic

#588DBB

#8FB2D1

#C6D8E8

#EDF3F8

Rectangle

#C6D8E8

#D5C5E7

#E7D5C5

#D7E7C5

Compound

#C6D8E8

#C5C6E7

#E7D5C5

#E7E6C5

Variations

Lighter

#D1DFEC

#DEE7EF

#EDF1F5

Darker

#86AED0

#3F79AC

#234766

Saturation

#D1D7DB

#C5D7E7

#B9D8F3

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

1.46:1

Fail

vs Black

14.39:1

AAA

Deuteranopia

#C6D8E8

#CED4E9

Original → Simulated

Protanopia

#C6D8E8

#D5D5E6

Original → Simulated

Tritanopia

#C6D8E8

#C5DAD8

Original → Simulated

Color Psychology

Focused · Cooling

Cosimo 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

#D4CFC9

Warm Bulb 2700K

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

#C6D8E8

Daylight 5500K

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

#C1D4ED

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.

#D0B49C

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: #C6D8E8;

CSS — background

background-color: #C6D8E8;

CSS Variable

--color-cosimo: #C6D8E8;

Tailwind v3 — config

colors: { 'cosimo': '#C6D8E8' }

Tailwind — arbitrary

bg-[#C6D8E8] text-[#C6D8E8]

SCSS

$cosimo: #C6D8E8;

Similar Colors

Ice Sculpture

#C7D5E4 · ΔE 1.6

Jet Stream

#C0D7E8 · ΔE 1.8

Soft Sky

#C1D7E4 · ΔE 2.3

Lake Placid

#C5D3DF · ΔE 2.9

Bright and Early

#C3D8E1 · ΔE 3.9

English Hyacinth

#C8D0E3 · ΔE 4.4

Grand Rapids

#BAD1DC · ΔE 4.4

Mediterranean Breeze

#B7D4E2 · ΔE 4.5

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 #C6D8E8?

#C6D8E8 is Cosimo, a soft blue with a cool undertone.

Is #C6D8E8 warm or cool?

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

What rooms work best with Cosimo?

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

What colors pair well with Cosimo?

Cosimo 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 Cosimo?

You can download Cosimo 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 Cosimo?

The hex code is #C6D8E8. In RGB it's 198, 216, 232, and in HSL it's 208°, 42%, 84%.

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