GREENS

Starlight Blue Half

#C9E7E2

RGB 201, 231, 226 · HSL 170°, 38%, 85% · CMYK 13, 0, 2, 9

Starlight Blue Half is #C9E7E2 in HEX — rgb(201, 231, 226), hsl(170°, 38%, 85%), cmyk(13%, 0%, 2%, 9%).

Starlight Blue Half pulls into the airy end of the greens spectrum — HSL 170°, 38%, 85%. The muted saturation makes it quiet but present, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, libraries — for grounding, restorative spaces. Reads best alongside soft white walls, oak floors, brass, warm clay accents.

Color Codes

HEX#C9E7E2

RGB201, 231, 226

HSL170°, 38%, 85%

HSV170°, 13%, 91%

CMYK13, 0, 2, 9

Decimal13232098

CSS RGBrgb(201, 231, 226)

CSS HSLhsl(170, 38%, 85%)

Paint Matches — this color across 16 brands

Dulux

Starlight Blue Half S28E1H

Exact match

PPG

Swan Lake 1231-2

ΔE 1.4 · #C5E5E2

Benjamin Moore

Arctic 2050-60

ΔE 1.9 · #C5E4E2

Valspar

Sea Air 5006-9A

ΔE 1.9 · #CAEBE8

Behr

Ash Blue N470-1

ΔE 2.1 · #CEE6E2

Vista Paint

Glorianna K-255

ΔE 2.5 · #D1EDE6

Colorhouse

Water .01 Water-01

ΔE 2.6 · #CFE9E0

Dunn-Edwards

Whisper of Grass DE5701

ΔE 2.7 · #CBEDE5

Hallman-Lindsay

Eastern Wind 677

ΔE 2.8 · #CEEFEA

Sherwin-Williams

Tame Teal SW6757

ΔE 2.8 · #C1E6DF

Kilz

Sea Glass RG180-01

ΔE 4.1 · #D1E5E4

IKEA

IKEA081 81

ΔE 4.6 · #BFDAD7

Dutch Boy

Mellow Blue DCP-0468

ΔE 6.7 · #DDE8E2

Farrow & Ball

Borrowed Light 235

ΔE 9.1 · #D5DBDB

Kobra

White 01

ΔE 10.9 · #EAEAE4

RAL

Grey White 9002

ΔE 11.2 · #E7EBDA

Light Reflectance & Undertone

Light Reflectance Value (LRV)

75/100

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 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

#C9E7E2

#E7CACF

Analogous

#CAE7D4

#C9E7E2

#CADEE7

Triadic

#C9E7E2

#E2CAE7

#E7E2CA

Split-Complementary

#C9E7E2

#E7CADE

#E7D4CA

Tetradic

#C9E7E2

#D4CAE7

#E7CACF

#DEE7CA

Monochromatic

#61B8A9

#95D0C6

#C9E7E2

#EDF7F5

Rectangle

#C9E7E2

#CACFE7

#E7CACF

#E7E2CA

Compound

#C9E7E2

#CADEE7

#E7CACF

#E7D4CA

Variations

Lighter

#D5ECE8

#E1EFED

#EEF5F4

Darker

#8DCEC3

#45A998

#27645A

Saturation

#D4DDDC

#CAE7E2

#BEF3EA

Interior Use

Best Rooms

bedrooms, bathrooms, libraries

Best Uses

main walls, cabinetry, soft furniture

Pairs With

soft white walls, oak floors, brass, warm clay accents

Accessibility (WCAG)

vs White

1.31:1

Fail

vs Black

16.01:1

AAA

Deuteranopia

#C9E7E2

#DCDDE4

Original → Simulated

Protanopia

#C9E7E2

#E2E2E3

Original → Simulated

Tritanopia

#C9E7E2

#CAE6E5

Original → Simulated

Color Psychology

Calm · Restorative

Starlight Blue Half sits in the part of the spectrum the eye relaxes into. Designers reach for green when a room needs to feel like a refuge — bedrooms, libraries, bathrooms — because it lowers visual blood-pressure without flattening the space.

SymbolismGrowth, balance, nature

PersonalitySteady, grounded, thoughtful

calmnaturerestorativebalancebedroomlibrary

How it looks under different light

#D6DAC5

Warm Bulb 2700K

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

#C9E7E2

Daylight 5500K

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

#C3DFE9

Cool Bulb 6500K

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

Pairs With

#E9ECEC

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.

#CFA1A9

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: #C9E7E2;

CSS — background

background-color: #C9E7E2;

CSS Variable

--color-starlight-blue-half: #C9E7E2;

Tailwind v3 — config

colors: { 'starlight-blue-half': '#C9E7E2' }

Tailwind — arbitrary

bg-[#C9E7E2] text-[#C9E7E2]

SCSS

$starlight-blue-half: #C9E7E2;

Similar Colors

Arctic Blue

#C4E3E1 · ΔE 2.1

At Sea

#C4E3DB · ΔE 2.3

Jack Frost

#C1E7E5 · ΔE 3.0

Quartz Stone

#CBE9DE · ΔE 3.2

Soft Mint

#C2E8E0 · ΔE 3.2

Forget Me Not

#C0E3E3 · ΔE 3.4

Iced Green

#C6DEDA · ΔE 3.4

Water Drops

#C2E7DD · ΔE 3.7

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 #C9E7E2?

#C9E7E2 is Starlight Blue Half, a light green with a cool undertone.

Is #C9E7E2 warm or cool?

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

What rooms work best with Starlight Blue Half?

Starlight Blue Half works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Starlight Blue Half?

Starlight Blue Half pairs naturally with soft white walls, oak floors, brass, warm clay accents. Its complementary color is also a strong contrast option for accents.

Where can I download Starlight Blue Half?

You can download Starlight Blue Half 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 Starlight Blue Half?

The hex code is #C9E7E2. In RGB it's 201, 231, 226, and in HSL it's 170°, 38%, 85%.

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