#42b1cb

Color #42b1cb

A moderately saturated medium cyan.

Closest named color Sky Blue #87ceeb · ΔE 14.58 Nearest Tailwind class cyan-500 #00b8db · ΔE 3.1

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

Conversions

HEX

#42b1cb

RGB

rgb(66, 177, 203)

HSL

hsl(191.4, 56.8%, 52.7%)

HSV / HSB

hsv(191.4, 67.5%, 79.6%)

CMYK

cmyk(67.5%, 12.8%, 0%, 20.4%)

LAB

lab(67.21, -23.05, -22.39)

LCH

lch(67.21, 32.13, 224.17)

OKLCH

oklch(70.8%, 0.1052, 216.38)

HWB

hwb(191.4, 25.9%, 20.4%)

Harmony colors

Complementary

#cb5c42

Analogous

#42cba0

#42b1cb

#426ccb

Triadic

#42b1cb

#cb42b1

#b1cb42

Split-complementary

#42b1cb

#cb426c

#cba042

Tetradic

#42b1cb

#5c42cb

#cb5c42

#b1cb42

Square

#42b1cb

#a042cb

#cb5c42

#6ccb42

Shades

Color #42b1cb mixed toward black.

#3097b0

#27798c

#1d5b69

#133d46

#0a1e23

Tints

Color #42b1cb mixed toward white.

#61bed4

#81cbdc

#a0d8e5

#c0e5ee

#dff2f6

Tones

Color #42b1cb mixed toward gray.

#4daabf

#59a3b4

#649ca9

#70959d

#7b8d92

Accessibility

Aa White text on this color

2.51:1

Aa Black text on this color

8.38:1

Black text reads better on this background (8.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#8182c5 · ΔE 26.2

Deuteranopia

#7b73c4 · ΔE 29.3

Tritanopia

#4dc0bf · ΔE 10.6

Achromatopsia

#a4a4a4 · ΔE 20.8

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

Code

CSS

background-color: #42b1cb;

Tailwind (arbitrary value)

bg-[#42b1cb]

Related colors

Light Blue #add8e6

Deep Sky Blue #00bfff

Powder Blue #b0e0e6

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#42b1cb (#42b1cb) is rgb(66, 177, 203) in RGB.

No, #42b1cb 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 #42b1cb, or check how it holds up for accessibility.

Generate a palette → Check contrast