#66d1e3

Color #66d1e3

A moderately saturated light cyan.

Closest named color Sky Blue #87ceeb · ΔE 11.41 Nearest Tailwind class cyan-400 #00d3f2 · ΔE 4.4

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

Conversions

HEX

#66d1e3

RGB

rgb(102, 209, 227)

HSL

hsl(188.6, 69.1%, 64.5%)

HSV / HSB

hsv(188.6, 55.1%, 89%)

CMYK

cmyk(55.1%, 7.9%, 0%, 11%)

LAB

lab(78.44, -25.82, -18.28)

LCH

lch(78.44, 31.64, 215.3)

OKLCH

oklch(80.4%, 0.1014, 209.93)

HWB

hwb(188.6, 40%, 11%)

Harmony colors

Complementary

#e37866

Analogous

#66e3b6

#66d1e3

#6693e3

Triadic

#66d1e3

#e366d1

#d1e366

Split-complementary

#66d1e3

#e36693

#e3b666

Tetradic

#66d1e3

#7866e3

#e37866

#d1e366

Square

#66d1e3

#b666e3

#e37866

#93e366

Shades

Color #66d1e3 mixed toward black.

#38c3db

#22a4b9

#197b8b

#11525d

#08292e

Tints

Color #66d1e3 mixed toward white.

#7fd9e8

#99e0ec

#b2e8f1

#ccf0f6

#e5f7fa

Tones

Color #66d1e3 mixed toward gray.

#70cad9

#7bc2ce

#85bbc4

#90b3b9

#9aacaf

Accessibility

Aa White text on this color

1.78:1

Aa Black text on this color

11.79:1

Black text reads better on this background (11.79:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#a0a1df · ΔE 26.9

Deuteranopia

#9a91de · ΔE 30

Tritanopia

#6fdbdb · ΔE 6.9

Achromatopsia

#c2c2c2 · ΔE 21.2

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

Code

CSS

background-color: #66d1e3;

Tailwind (arbitrary value)

bg-[#66d1e3]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Frequently asked questions

#66d1e3 (#66d1e3) is rgb(102, 209, 227) in RGB.

No, #66d1e3 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 #66d1e3, or check how it holds up for accessibility.

Generate a palette → Check contrast