#18b5ea

Color #18b5ea

A vivid, highly saturated medium cyan.

Closest named color Deep Sky Blue #00bfff · ΔE 6.87 Nearest Tailwind class sky-400 #00bcff · ΔE 3.6

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#18b5ea

RGB

rgb(24, 181, 234)

HSL

hsl(195.1, 83.3%, 50.6%)

HSV / HSB

hsv(195.1, 89.7%, 91.8%)

CMYK

cmyk(89.7%, 22.6%, 0%, 8.2%)

LAB

lab(68.88, -18.95, -36.88)

LCH

lch(68.88, 41.46, 242.8)

OKLCH

oklch(72.4%, 0.1384, 228.72)

HWB

hwb(195.1, 9.4%, 8.2%)

Harmony colors

Complementary

#ea4d18

Analogous

#18eab6

#18b5ea

#184cea

Triadic

#18b5ea

#ea18b5

#b5ea18

Split-complementary

#18b5ea

#ea184c

#eab618

Tetradic

#18b5ea

#4d18ea

#ea4d18

#b5ea18

Square

#18b5ea

#b618ea

#ea4d18

#4cea18

Shades

Color #18b5ea mixed toward black.

#1298c5

#0e7a9e

#0b5b76

#073d4f

#041e27

Tints

Color #18b5ea mixed toward white.

#3fc1ed

#65cef1

#8cdaf4

#b2e6f8

#d9f3fb

Tones

Color #18b5ea mixed toward gray.

#2aacd8

#3ba4c7

#4d9bb5

#5e92a4

#708a93

Accessibility

Aa White text on this color

2.38:1

Aa Black text on this color

8.84:1

Black text reads better on this background (8.84:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#7d7edf · ΔE 26.5

Deuteranopia

#756adc · ΔE 31

Tritanopia

#32d5d3 · ΔE 19.2

Achromatopsia

#a8a8a8 · ΔE 22.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #18b5ea;

Tailwind (arbitrary value)

bg-[#18b5ea]

Related colors

Deep Sky Blue #00bfff

Light Blue #add8e6

Sky Blue #87ceeb

Light Sky Blue #87cefa

Powder Blue #b0e0e6

Charcoal #36454f

Frequently asked questions

#18b5ea (#18b5ea) is rgb(24, 181, 234) in RGB.

No, #18b5ea is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #18b5ea, or check how it holds up for accessibility.

Generate a palette → Check contrast