#42ceef

Color #42ceef

A vivid, highly saturated medium cyan.

Closest named color Sky Blue #87ceeb · ΔE 13.17 Nearest Tailwind class cyan-400 #00d3f2 · ΔE 2.5

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Conversions

HEX

#42ceef

RGB

rgb(66, 206, 239)

HSL

hsl(191.4, 84.4%, 59.8%)

HSV / HSB

hsv(191.4, 72.4%, 93.7%)

CMYK

cmyk(72.4%, 13.8%, 0%, 6.3%)

LAB

lab(77, -26.5, -27)

LCH

lch(77, 37.83, 225.54)

OKLCH

oklch(79.1%, 0.1246, 217.17)

HWB

hwb(191.4, 25.9%, 6.3%)

Harmony colors

Complementary

#ef6342

Analogous

#42efb9

#42ceef

#4278ef

Triadic

#42ceef

#ef42ce

#ceef42

Split-complementary

#42ceef

#ef4278

#efb942

Tetradic

#42ceef

#6342ef

#ef6342

#ceef42

Square

#42ceef

#b942ef

#ef6342

#78ef42

Shades

Color #42ceef mixed toward black.

#14c2ea

#109bbb

#0c748d

#084d5e

#04272f

Tints

Color #42ceef mixed toward white.

#61d6f2

#81def4

#a0e7f7

#c0effa

#dff7fc

Tones

Color #42ceef mixed toward gray.

#50c5e1

#5fbcd2

#6db3c4

#7caab5

#8aa1a7

Accessibility

Aa White text on this color

1.86:1

Aa Black text on this color

11.31:1

Black text reads better on this background (11.31:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#9496e8 · ΔE 28.1

Deuteranopia

#8d82e6 · ΔE 32.1

Tritanopia

#51e1e0 · ΔE 12.1

Achromatopsia

#bebebe · ΔE 22.2

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

Code

CSS

background-color: #42ceef;

Tailwind (arbitrary value)

bg-[#42ceef]

Related colors

Light Blue #add8e6

Deep Sky Blue #00bfff

Powder Blue #b0e0e6

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#42ceef (#42ceef) is rgb(66, 206, 239) in RGB.

No, #42ceef is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #42ceef, or check how it holds up for accessibility.

Generate a palette → Check contrast