#66ff8a

Color #66ff8a

A vivid, highly saturated light green.

Closest named color Spring Green #00ff7f · ΔE 12.79 Nearest Tailwind class green-300 #7bf1a8 · ΔE 6.9

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

Conversions

HEX

#66ff8a

RGB

rgb(102, 255, 138)

HSL

hsl(134.1, 100%, 70%)

HSV / HSB

hsv(134.1, 60%, 100%)

CMYK

cmyk(60%, 0%, 45.9%, 0%)

LAB

lab(89.94, -64.58, 43.94)

LCH

lch(89.94, 78.11, 145.77)

OKLCH

oklch(89.1%, 0.2049, 148.39)

HWB

hwb(134.1, 40%, 0%)

Harmony colors

Complementary

#ff66db

Analogous

#8fff66

#66ff8a

#66ffd6

Triadic

#66ff8a

#8a66ff

#ff8a66

Split-complementary

#66ff8a

#d666ff

#ff668f

Tetradic

#66ff8a

#66dbff

#ff66db

#ff8a66

Square

#66ff8a

#668fff

#ff66db

#ffd666

Shades

Color #66ff8a mixed toward black.

#2bff5c

#00ee38

#00b32a

#00771c

#003b0e

Tints

Color #66ff8a mixed toward white.

#80ff9d

#99ffb1

#b3ffc4

#ccffd8

#e5ffeb

Tones

Color #66ff8a mixed toward gray.

#73f291

#7fe597

#8cd99e

#99cca5

#a6bfac

Accessibility

Aa White text on this color

1.29:1

Aa Black text on this color

16.24:1

Black text reads better on this background (16.24:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#bdbeb0 · ΔE 26.9

Deuteranopia

#b4a8b8 · ΔE 39

Tritanopia

#74c8cd · ΔE 30.2

Achromatopsia

#e2e2e2 · ΔE 28.4

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

Code

CSS

background-color: #66ff8a;

Tailwind (arbitrary value)

bg-[#66ff8a]

Related colors

Sea Green #2e8b57

Medium Sea Green #3cb371

Forest Green #228b22

Mint Green #98ff98

Dark Green #006400

Dark Sea Green #8fbc8f

Frequently asked questions

#66ff8a (#66ff8a) is rgb(102, 255, 138) in RGB.

No, #66ff8a 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 #66ff8a, or check how it holds up for accessibility.

Generate a palette → Check contrast