#31bbff

Color #31bbff

A vivid, highly saturated medium cyan.

Closest named color Deep Sky Blue #00bfff · ΔE 4.61 Nearest Tailwind class sky-400 #00bcff · ΔE 1.6

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Conversions

HEX

#31bbff

RGB

rgb(49, 187, 255)

HSL

hsl(199.8, 100%, 59.6%)

HSV / HSB

hsv(199.8, 80.8%, 100%)

CMYK

cmyk(80.8%, 26.7%, 0%, 0%)

LAB

lab(71.83, -13.24, -43.63)

LCH

lch(71.83, 45.59, 253.12)

OKLCH

oklch(75.1%, 0.1485, 236.12)

HWB

hwb(199.8, 19.2%, 0%)

Harmony colors

Complementary

#ff7531

Analogous

#31ffdc

#31bbff

#3154ff

Triadic

#31bbff

#ff31bb

#bbff31

Split-complementary

#31bbff

#ff3154

#ffdc31

Tetradic

#31bbff

#7531ff

#ff7531

#bbff31

Square

#31bbff

#dc31ff

#ff7531

#54ff31

Shades

Color #31bbff mixed toward black.

#00aafd

#0088cb

#006698

#004465

#002233

Tints

Color #31bbff mixed toward white.

#53c6ff

#76d2ff

#98ddff

#bae8ff

#ddf4ff

Tones

Color #31bbff mixed toward gray.

#42b5ee

#53afdd

#64a9cb

#76a4ba

#879ea9

Accessibility

Aa White text on this color

2.17:1

Aa Black text on this color

9.68:1

Black text reads better on this background (9.68:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#8486f1 · ΔE 24.4

Deuteranopia

#7d73ed · ΔE 28.8

Tritanopia

#42e5e2 · ΔE 23.3

Achromatopsia

#b0b0b0 · ΔE 22.7

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

Code

CSS

background-color: #31bbff;

Tailwind (arbitrary value)

bg-[#31bbff]

Related colors

Sky Blue #87ceeb

Light Sky Blue #87cefa

Charcoal #36454f

Deep Sky Blue #00bfff

Light Blue #add8e6

Steel Blue #4682b4

Frequently asked questions

#31bbff (#31bbff) is rgb(49, 187, 255) in RGB.

No, #31bbff 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 #31bbff, or check how it holds up for accessibility.

Generate a palette → Check contrast