BLUES

Blue Fin

#577FAE

RGB 87, 127, 174 · HSL 212°, 35%, 51% · CMYK 50, 27, 0, 32

Blue Fin is #577FAE in HEX — rgb(87, 127, 174), hsl(212°, 35%, 51%), cmyk(50%, 27%, 0%, 32%).

Blue Fin pulls into the mid-tone end of the blues spectrum — HSL 212°, 35%, 51%. 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#577FAE

RGB87, 127, 174

HSL212°, 35%, 51%

HSV212°, 50%, 68%

CMYK50, 27, 0, 32

Decimal5734318

CSS RGBrgb(87, 127, 174)

CSS HSLhsl(212, 35%, 51%)

Paint Matches — this color across 16 brands

Dulux

Deck Crew S40E5

ΔE 2.1 · #5E7FAC

PPG

Shrinking Violet 1162-5

ΔE 2.3 · #5D84B1

Behr

Neon Blue PPU15-6

ΔE 2.4 · #5C83B5

Valspar

Wellspring 4007-8B

ΔE 2.7 · #5E85B2

Hallman-Lindsay

Caribbean Current 598

ΔE 3.4 · #5678A9

Vista Paint

Harbor Blue K-105

ΔE 3.7 · #5B79AA

Sherwin-Williams

Lupine SW6810

ΔE 4.9 · #4E739F

Benjamin Moore

Nile CSP-560

ΔE 6 · #4F729B

Kilz

Stylish Blue RC160-02

ΔE 6 · #5D7CA1

Dunn-Edwards

Walker Lake DE5858

ΔE 7.7 · #3D87BB

RAL

Light Blue 5012

ΔE 8.3 · #3B83BD

Farrow & Ball

Cook's Blue 237

ΔE 9.3 · #6A90B4

IKEA

IKEA128 128

ΔE 10.6 · #4A72B0

Kobra

Blue 29

ΔE 11 · #1882B4

Dutch Boy

Celestial Horizon DCP-0589

ΔE 19.4 · #8FA4BF

Colorhouse

Water .05 Water-05

ΔE 25.8 · #82979D

Light Reflectance & Undertone

Light Reflectance Value (LRV)

20/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

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

#577FAE

#AE8556

Analogous

#56ABAE

#577FAE

#5956AE

Triadic

#577FAE

#AE567F

#7FAE56

Split-Complementary

#577FAE

#AE5956

#ABAE56

Tetradic

#577FAE

#AE56AB

#AE8556

#56AE59

Monochromatic

#233448

#3C5A7C

#577FAE

#8AA6C7

#BECDE0

Rectangle

#577FAE

#8556AE

#AE8556

#7FAE56

Compound

#577FAE

#5956AE

#AE8556

#ABAE56

Variations

Lighter

#7899BE

#9EB3CA

#C9D3DE

Darker

#42658E

#2C4663

#19283A

Saturation

#75818F

#567FAE

#2E7CD6

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

4.16:1

AA Large

vs Black

5.05:1

Deuteranopia

#577FAE

#6579AF

Original → Simulated

Protanopia

#577FAE

#7979A9

Original → Simulated

Tritanopia

#577FAE

#518781

Original → Simulated

Color Psychology

Focused · Cooling

Blue Fin 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

#818C9E

Warm Bulb 2700K

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

#577FAE

Daylight 5500K

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

#6E91C2

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.

#8F714E

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: #577FAE;

CSS — background

background-color: #577FAE;

CSS Variable

--color-blue-fin: #577FAE;

Tailwind v3 — config

colors: { 'blue-fin': '#577FAE' }

Tailwind — arbitrary

bg-[#577FAE] text-[#577FAE]

SCSS

$blue-fin: #577FAE;

Similar Colors

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#5F8EC2 · ΔE 6.2

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Watertown

#5B7EB7 · ΔE 6.4

Yin Yang

#6A82A8 · ΔE 6.7

Winter's Eve

#40729C · ΔE 6.8

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#4580A8 · ΔE 6.9

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#3D74AC · ΔE 7.6

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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 #577FAE?

#577FAE is Blue Fin, a mid-tone blue with a cool undertone.

Is #577FAE warm or cool?

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

What rooms work best with Blue Fin?

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

What colors pair well with Blue Fin?

Blue Fin 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 Blue Fin?

You can download Blue Fin 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 Blue Fin?

The hex code is #577FAE. In RGB it's 87, 127, 174, and in HSL it's 212°, 35%, 51%.

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