GREENS

Brilliant Sea

#009CB7

RGB 0, 156, 183 · HSL 189°, 100%, 36% · CMYK 100, 15, 0, 28

Brilliant Sea is #009CB7 in HEX — rgb(0, 156, 183), hsl(189°, 100%, 36%), cmyk(100%, 15%, 0%, 28%).

Brilliant Sea pulls into the rich end of the greens spectrum — HSL 189°, 100%, 36%. The saturated saturation makes it bold and immediate, 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#009CB7

RGB0, 156, 183

HSL189°, 100%, 36%

HSV189°, 100%, 72%

CMYK100, 15, 0, 28

Decimal40119

CSS RGBrgb(0, 156, 183)

CSS HSLhsl(189, 100%, 36%)

Paint Matches — this color across 16 brands

Dulux

Butterfly Blue S33F4

ΔE 2.3 · #209EBB

Sherwin-Williams

Capri SW6788

ΔE 2.5 · #01A0B8

Behr

Gulf Waters MQ4-52

ΔE 3 · #20A4BF

Valspar

Fragrant Bouquet 5003-10B

ΔE 3.2 · #269EBC

Dunn-Edwards

Tropical Lagoon DE5781

ΔE 3.4 · #1E98AE

Vista Paint

Navajo Turquoise K-193

ΔE 4.1 · #0094AA

Hallman-Lindsay

Blue Bliss 675

ΔE 4.1 · #0092AA

Benjamin Moore

Dream 769

ΔE 4.5 · #20A1C2

PPG

Mediterranean Blue 1236-7

ΔE 4.8 · #0090A8

Kilz

Centurian Blue RH180

ΔE 8.9 · #158AAB

Kobra

Blue 28

ΔE 9.7 · #4EB3CD

Farrow & Ball

St Giles Blue 280

ΔE 14 · #599EC4

RAL

Turquoise Blue 5018

ΔE 15.1 · #3F888F

IKEA

IKEA118 118

ΔE 17.6 · #317983

Dutch Boy

Sky Blue D-6742

ΔE 18.1 · #7AC2D8

Colorhouse

Dream .06 Dream-06

ΔE 19.3 · #0E707B

Light Reflectance & Undertone

Light Reflectance Value (LRV)

27/100

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

#009CB7

#B81C00

Analogous

#00B877

#009CB7

#0040B8

Triadic

#009CB7

#B8009C

#9CB800

Split-Complementary

#009CB7

#B80040

#B87700

Tetradic

#009CB7

#7700B8

#B81C00

#40B800

Monochromatic

#001A1F

#005B6B

#009CB7

#05DAFF

#52E5FF

Rectangle

#009CB7

#1C00B8

#B81C00

#9CB800

Compound

#009CB7

#0040B8

#B81C00

#B87700

Variations

Lighter

#00D4F9

#4AD7F0

#9EE2EE

Darker

#007D93

#005665

#00323B

Saturation

#406F77

#009CB8

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

3.26:1

AA Large

vs Black

6.44:1

Deuteranopia

#009CB7

#7284B9

Original → Simulated

Protanopia

#009CB7

#8F8FB4

Original → Simulated

Tritanopia

#009CB7

#009F9A

Original → Simulated

Color Psychology

Calm · Restorative

Brilliant Sea 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

#3FA2A4

Warm Bulb 2700K

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

#009CB7

Daylight 5500K

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

#2DA7C9

Cool Bulb 6500K

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

Pairs With

#E7EDEE

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.

#8C2210

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 · Doors · Mouldings

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: #009CB7;

CSS — background

background-color: #009CB7;

CSS Variable

--color-brilliant-sea: #009CB7;

Tailwind v3 — config

colors: { 'brilliant-sea': '#009CB7' }

Tailwind — arbitrary

bg-[#009CB7] text-[#009CB7]

SCSS

$brilliant-sea: #009CB7;

Similar Colors

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#1FA0C1 · ΔE 4.4

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#0493A7 · ΔE 5.2

Cool Blue

#419AB7 · ΔE 7.0

Blue Lagoon

#409CAC · ΔE 7.6

Yosemite Blue

#17A1C8 · ΔE 7.6

Bahaman Sea Blue

#12ABBE · ΔE 7.7

Wilmington Spruce

#3292A1 · ΔE 8.5

Ash Blue

#4D9CAE · ΔE 8.8

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 #009CB7?

#009CB7 is Brilliant Sea, a deep green with a cool undertone.

Is #009CB7 warm or cool?

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

What rooms work best with Brilliant Sea?

Brilliant Sea works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Brilliant Sea?

Brilliant Sea 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 Brilliant Sea?

You can download Brilliant Sea 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 Brilliant Sea?

The hex code is #009CB7. In RGB it's 0, 156, 183, and in HSL it's 189°, 100%, 36%.

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