#258d66

Color #258d66

A moderately saturated dark green.

Closest named color Sea Green #2e8b57 · ΔE 7.58 Nearest Tailwind class emerald-600 #009966 · ΔE 4.7

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Conversions

HEX

#258d66

RGB

rgb(37, 141, 102)

HSL

hsl(157.5, 58.4%, 34.9%)

HSV / HSB

hsv(157.5, 73.8%, 55.3%)

CMYK

cmyk(73.8%, 0%, 27.7%, 44.7%)

LAB

lab(52.29, -38.83, 12.56)

LCH

lch(52.29, 40.81, 162.08)

OKLCH

oklch(57.5%, 0.1112, 163.28)

HWB

hwb(157.5, 14.5%, 44.7%)

Harmony colors

Complementary

#8d254c

Analogous

#258d32

#258d66

#25808d

Triadic

#258d66

#66258d

#8d6625

Split-complementary

#258d66

#8d2580

#8d3225

Tetradic

#258d66

#254c8d

#8d254c

#8d6625

Square

#258d66

#32258d

#8d254c

#808d25

Shades

Color #258d66 mixed toward black.

#1f7555

#195e44

#134633

#0c2f22

#061711

Tints

Color #258d66 mixed toward white.

#31b986

#50d1a0

#7cdcb8

#a7e8d0

#d3f3e7

Tones

Color #258d66 mixed toward gray.

#2e8464

#367c62

#3f735f

#486a5d

#50625b

Accessibility

Aa White text on this color

4.13:1

Aa Black text on this color

5.08:1

Black text reads better on this background (5.08:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#636471 · ΔE 29.3

Deuteranopia

#5e5673 · ΔE 35.7

Tritanopia

#31797a · ΔE 15.9

Achromatopsia

#7d7d7d · ΔE 23.8

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

Code

CSS

background-color: #258d66;

Tailwind (arbitrary value)

bg-[#258d66]

Related colors

Medium Spring Green #00fa9a

Medium Aquamarine #66cdaa

Aquamarine #7fffd4

Mint Cream #f5fffa

Spring Green #00ff7f

Medium Sea Green #3cb371

Frequently asked questions

#258d66 (#258d66) is rgb(37, 141, 102) in RGB.

No, #258d66 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 #258d66, or check how it holds up for accessibility.

Generate a palette → Check contrast