BLUES

El Capitan

#18A4DA

RGB 24, 164, 218 · HSL 197°, 80%, 47% · CMYK 89, 25, 0, 15

El Capitan is #18A4DA in HEX — rgb(24, 164, 218), hsl(197°, 80%, 47%), cmyk(89%, 25%, 0%, 15%).

El Capitan pulls into the mid-tone end of the blues spectrum — HSL 197°, 80%, 47%. The saturated saturation makes it bold and immediate, 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#18A4DA

RGB24, 164, 218

HSL197°, 80%, 47%

HSV197°, 89%, 85%

CMYK89, 25, 0, 15

Decimal1615066

CSS RGBrgb(24, 164, 218)

CSS HSLhsl(197, 80%, 47%)

Paint Matches — this color across 16 brands

Behr

El Capitan MQ4-56

Exact match

Dulux

Boyzone S35H4

ΔE 4 · #2A9DD5

Benjamin Moore

Bayberry 790

ΔE 5.3 · #409ED2

Kilz

Hero Blue RD280-02

ΔE 5.4 · #1898C8

Dunn-Edwards

Pool Party DE5837

ΔE 5.5 · #0098C8

PPG

Sorcerer 1240-5

ΔE 6 · #3398CE

Sherwin-Williams

Dynamic Blue SW6958

ΔE 6.8 · #0192C6

Valspar

Blue Burst 4008-10B

ΔE 6.9 · #3097D0

Vista Paint

Charybdis C-660

ΔE 8.3 · #1DA1C9

Hallman-Lindsay

Charybdis 661

ΔE 8.4 · #16A3CB

Farrow & Ball

St Giles Blue 280

ΔE 11.7 · #599EC4

Kobra

Blue 29

ΔE 13.3 · #1882B4

RAL

Light Blue 5012

ΔE 15.8 · #3B83BD

Dutch Boy

Sky Blue D-6742

ΔE 22.2 · #7AC2D8

IKEA

IKEA084 84

ΔE 22.8 · #83AAC1

Colorhouse

Dream .06 Dream-06

ΔE 31.6 · #0E707B

Light Reflectance & Undertone

Light Reflectance Value (LRV)

32/100

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 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

#18A4DA

#D84E18

Analogous

#18D8AE

#18A4DA

#1842D8

Triadic

#18A4DA

#D818A1

#A1D818

Split-Complementary

#18A4DA

#D81842

#D8AE18

Tetradic

#18A4DA

#AE18D8

#D84E18

#42D818

Monochromatic

#093A4E

#106E93

#18A4DA

#51C0EC

#95D9F3

Rectangle

#18A4DA

#4E18D8

#D84E18

#A1D818

Compound

#18A4DA

#1842D8

#D84E18

#D8AE18

Variations

Lighter

#3CB8E9

#77C6E5

#B5DBEA

Darker

#0F83B0

#085B7C

#03364A

Saturation

#5B8495

#18A1D8

#0CA7E4

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

2.85:1

Fail

vs Black

7.36:1

AAA

Deuteranopia

#18A4DA

#7190DC

Original → Simulated

Protanopia

#18A4DA

#9797D4

Original → Simulated

Tritanopia

#18A4DA

#00ADA4

Original → Simulated

Color Psychology

Focused · Cooling

El Capitan 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

#51A8BF

Warm Bulb 2700K

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

#18A4DA

Daylight 5500K

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

#3FADE3

Cool Bulb 6500K

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

Pairs With

#E8ECEE

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.

#AB4821

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: #18A4DA;

CSS — background

background-color: #18A4DA;

CSS Variable

--color-el-capitan: #18A4DA;

Tailwind v3 — config

colors: { 'el-capitan': '#18A4DA' }

Tailwind — arbitrary

bg-[#18A4DA] text-[#18A4DA]

SCSS

$el-capitan: #18A4DA;

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#3F9DD1 · ΔE 5.4

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#3195CA · ΔE 6.9

Utah Sky

#1C94D0 · ΔE 8.0

Lake Tahoe

#4298C4 · ΔE 8.3

Rocky Mountain Sky

#0F97D8 · ΔE 8.9

Yosemite Blue

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Sailor's Sea Blue

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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 #18A4DA?

#18A4DA is El Capitan, a mid-tone blue with a cool undertone.

Is #18A4DA warm or cool?

El Capitan reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with El Capitan?

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

What colors pair well with El Capitan?

El Capitan 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 El Capitan?

You can download El Capitan 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 El Capitan?

The hex code is #18A4DA. In RGB it's 24, 164, 218, and in HSL it's 197°, 80%, 47%.

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