GREENS

Fountain Blue

#65ADB2

RGB 101, 173, 178 · HSL 184°, 33%, 55% · CMYK 43, 3, 0, 30

Fountain Blue is #65ADB2 in HEX — rgb(101, 173, 178), hsl(184°, 33%, 55%), cmyk(43%, 3%, 0%, 30%).

Fountain Blue pulls into the mid-tone end of the greens spectrum — HSL 184°, 33%, 55%. 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#65ADB2

RGB101, 173, 178

HSL184°, 33%, 55%

HSV184°, 43%, 70%

CMYK43, 3, 0, 30

Decimal6663602

CSS RGBrgb(101, 173, 178)

CSS HSLhsl(184, 33%, 55%)

Paint Matches — this color across 16 brands

Dulux

Summer Sea S31D3

ΔE 0.6 · #66ACB1

Benjamin Moore

Peacock 2049-40

ΔE 2 · #62ADAF

Kilz

Deep Turquoise RF120-01

ΔE 3.5 · #57A8AB

Behr

Waterscape 530F-5

ΔE 3.8 · #72ACB0

Valspar

Well Water 5005-8A

ΔE 3.9 · #6EB7BE

Dunn-Edwards

Castaway DE5738

ΔE 4.8 · #6DBAC0

Sherwin-Williams

Reflecting Pool SW6486

ΔE 5.6 · #7BB1B2

Vista Paint

Brookside K-202

ΔE 5.7 · #4AA9B2

PPG

Teal Bayou 1147-5

ΔE 5.9 · #57A1A0

RAL

Pastel Turquoise 6034

ΔE 6.5 · #7FB5B5

Hallman-Lindsay

Cold North 688

ΔE 7.3 · #559C9B

IKEA

IKEA082 82

ΔE 9.4 · #729E9C

Kobra

Blue 27

ΔE 12.2 · #87C8D7

Dutch Boy

Sky Blue D-6742

ΔE 12.5 · #7AC2D8

Colorhouse

Dream .04 Dream-04

ΔE 14.1 · #9CC7C4

Farrow & Ball

Stone Blue 86

ΔE 14.4 · #7997A1

Light Reflectance & Undertone

Light Reflectance Value (LRV)

36/100

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

#65ADB2

#B26B66

Analogous

#66B291

#65ADB2

#6687B2

Triadic

#65ADB2

#B266AD

#ADB266

Split-Complementary

#65ADB2

#B26687

#B29166

Tetradic

#65ADB2

#9166B2

#B26B66

#87B266

Monochromatic

#2B5255

#448388

#65ADB2

#99C8CC

#CCE4E5

Rectangle

#65ADB2

#6B66B2

#B26B66

#ADB266

Compound

#65ADB2

#6687B2

#B26B66

#B29166

Variations

Lighter

#85BDC1

#A7CBCD

#CEDFE0

Darker

#499297

#316569

#1C3C3E

Saturation

#819698

#66ADB2

#40CED9

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

2.57:1

Fail

vs Black

8.17:1

AAA

Deuteranopia

#65ADB2

#939AB4

Original → Simulated

Protanopia

#65ADB2

#A4A4B1

Original → Simulated

Tritanopia

#65ADB2

#67ADAA

Original → Simulated

Color Psychology

Calm · Restorative

Fountain Blue 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

#8BAEA1

Warm Bulb 2700K

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

#65ADB2

Daylight 5500K

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

#78B3C5

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.

#995A56

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 · Trim · Soft 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 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: #65ADB2;

CSS — background

background-color: #65ADB2;

CSS Variable

--color-fountain-blue: #65ADB2;

Tailwind v3 — config

colors: { 'fountain-blue': '#65ADB2' }

Tailwind — arbitrary

bg-[#65ADB2] text-[#65ADB2]

SCSS

$fountain-blue: #65ADB2;

Similar Colors

Peacock Blue

#61ACAE · ΔE 2.1

Santa Clara

#57ABB7 · ΔE 4.5

Florida Keys Blue

#6DA9A7 · ΔE 4.8

Harbor Side Blue

#5CB5B9 · ΔE 4.9

Seaside Resort

#6FAAB4 · ΔE 4.9

Gulf Stream

#68B1AD · ΔE 5.3

Majestic Blue

#629FA0 · ΔE 5.9

Bayville Blue

#71AEBB · ΔE 6.0

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 #65ADB2?

#65ADB2 is Fountain Blue, a mid-tone green with a cool undertone.

Is #65ADB2 warm or cool?

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

What rooms work best with Fountain Blue?

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

What colors pair well with Fountain Blue?

Fountain Blue 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 Fountain Blue?

You can download Fountain Blue 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 Fountain Blue?

The hex code is #65ADB2. In RGB it's 101, 173, 178, and in HSL it's 184°, 33%, 55%.

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