#1fff5b

Color #1fff5b

A vivid, highly saturated medium green.

Closest named color Spring Green #00ff7f · ΔE 15.9 Nearest Tailwind class green-400 #05df72 · ΔE 8.8

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Conversions

HEX

#1fff5b

RGB

rgb(31, 255, 91)

HSL

hsl(136.1, 100%, 56.1%)

HSV / HSB

hsv(136.1, 87.8%, 100%)

CMYK

cmyk(87.8%, 0%, 64.3%, 0%)

LAB

lab(88.24, -80.28, 62.56)

LCH

lch(88.24, 101.78, 142.07)

OKLCH

oklch(87.2%, 0.2601, 146.07)

HWB

hwb(136.1, 12.2%, 0%)

Harmony colors

Complementary

#ff1fc3

Analogous

#53ff1f

#1fff5b

#1fffcb

Triadic

#1fff5b

#5b1fff

#ff5b1f

Split-complementary

#1fff5b

#cb1fff

#ff1f53

Tetradic

#1fff5b

#1fc3ff

#ff1fc3

#ff5b1f

Square

#1fff5b

#1f53ff

#ff1fc3

#ffcb1f

Shades

Color #1fff5b mixed toward black.

#00ee40

#00bf33

#008f26

#005f1a

#00300d

Tints

Color #1fff5b mixed toward white.

#44ff76

#6aff92

#8fffad

#b4ffc8

#daffe4

Tones

Color #1fff5b mixed toward gray.

#32ec64

#44da6c

#57c775

#6ab47e

#7ca286

Accessibility

Aa White text on this color

1.35:1

Aa Black text on this color

15.51:1

Black text reads better on this background (15.51:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#b1b39a · ΔE 28.5

Deuteranopia

#a697a4 · ΔE 51.2

Tritanopia

#47bac0 · ΔE 35.3

Achromatopsia

#dddddd · ΔE 30.9

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

Code

CSS

background-color: #1fff5b;

Tailwind (arbitrary value)

bg-[#1fff5b]

Related colors

Sea Green #2e8b57

Medium Sea Green #3cb371

Spring Green #00ff7f

Mint Cream #f5fffa

Forest Green #228b22

Mint Green #98ff98

Frequently asked questions

#1fff5b (#1fff5b) is rgb(31, 255, 91) in RGB.

No, #1fff5b 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 #1fff5b, or check how it holds up for accessibility.

Generate a palette → Check contrast