BLUES

Explorer Blue

#57A3B3

RGB 87, 163, 179 · HSL 190°, 38%, 52% · CMYK 51, 9, 0, 30

Explorer Blue is #57A3B3 in HEX — rgb(87, 163, 179), hsl(190°, 38%, 52%), cmyk(51%, 9%, 0%, 30%).

Explorer Blue pulls into the mid-tone end of the blues spectrum — HSL 190°, 38%, 52%. 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#57A3B3

RGB87, 163, 179

HSL190°, 38%, 52%

HSV190°, 51%, 70%

CMYK51, 9, 0, 30

Decimal5743539

CSS RGBrgb(87, 163, 179)

CSS HSLhsl(190, 38%, 52%)

Paint Matches — this color across 16 brands

Benjamin Moore

Spa CSP-635

ΔE 1.9 · #5FA4B2

PPG

Blue Calypso 1235-5

ΔE 2.1 · #55A7B6

Dulux

Flood Out S32D4

ΔE 3.1 · #57A0AB

Valspar

Gone Fishing 5004-8A

ΔE 3.2 · #5DA1AC

Behr

Winter Lake 550F-5

ΔE 3.2 · #5B9DAE

Sherwin-Williams

Freshwater SW6774

ΔE 4.2 · #4DA6B2

Dunn-Edwards

Caribbean Cruise DE5760

ΔE 5.6 · #3F9DA9

Kilz

Serene Summit RE270-01

ΔE 5.8 · #68B2C4

Hallman-Lindsay

Blessed Blue 667

ΔE 6.4 · #659AA7

Vista Paint

Patch of Blue K-186

ΔE 6.5 · #4CAAC4

Kobra

Blue 28

ΔE 8.7 · #4EB3CD

RAL

Pastel Blue 5024

ΔE 9.7 · #5D9B9B

Dutch Boy

Sky Blue D-6742

ΔE 12.2 · #7AC2D8

IKEA

IKEA084 84

ΔE 12.4 · #83AAC1

Farrow & Ball

Stone Blue 86

ΔE 13.1 · #7997A1

Colorhouse

Water .05 Water-05

ΔE 16.4 · #82979D

Light Reflectance & Undertone

Light Reflectance Value (LRV)

31/100

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

#57A3B3

#B36656

Analogous

#56B394

#57A3B3

#5675B3

Triadic

#57A3B3

#B356A4

#A4B356

Split-Complementary

#57A3B3

#B35675

#B39456

Tetradic

#57A3B3

#9456B3

#B36656

#75B356

Monochromatic

#23464D

#3A7682

#57A3B3

#8BC0CB

#C0DDE3

Rectangle

#57A3B3

#6656B3

#B36656

#A4B356

Compound

#57A3B3

#5675B3

#B36656

#B39456

Variations

Lighter

#78B6C2

#9EC5CD

#C9DCE0

Darker

#408694

#2A5D67

#18373D

Saturation

#778E93

#56A4B3

#30BDD9

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

2.88:1

Fail

vs Black

7.30:1

AAA

Deuteranopia

#57A3B3

#8691B5

Original → Simulated

Protanopia

#57A3B3

#9999B1

Original → Simulated

Tritanopia

#57A3B3

#58A5A1

Original → Simulated

Color Psychology

Focused · Cooling

Explorer Blue 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

#81A7A1

Warm Bulb 2700K

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

#57A3B3

Daylight 5500K

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

#6EACC6

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.

#95584C

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: #57A3B3;

CSS — background

background-color: #57A3B3;

CSS Variable

--color-explorer-blue: #57A3B3;

Tailwind v3 — config

colors: { 'explorer-blue': '#57A3B3' }

Tailwind — arbitrary

bg-[#57A3B3] text-[#57A3B3]

SCSS

$explorer-blue: #57A3B3;

Similar Colors

Spa Day

#5EA3B1 · ΔE 1.9

Ash Blue

#4D9CAE · ΔE 2.9

Santa Clara

#57ABB7 · ΔE 4.2

Blue Toile

#5598A9 · ΔE 4.5

Blue Lagoon

#409CAC · ΔE 4.5

Blue Lake

#569CA5 · ΔE 4.8

Palace Blue

#5D9FB6 · ΔE 5.3

Bracken Blue

#69A2AB · ΔE 5.7

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 #57A3B3?

#57A3B3 is Explorer Blue, a mid-tone blue with a cool undertone.

Is #57A3B3 warm or cool?

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

What rooms work best with Explorer Blue?

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

What colors pair well with Explorer Blue?

Explorer Blue 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 Explorer Blue?

You can download Explorer 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 Explorer Blue?

The hex code is #57A3B3. In RGB it's 87, 163, 179, and in HSL it's 190°, 38%, 52%.

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