#40cd9f

Color #40cd9f

A moderately saturated medium green.

Closest named color Medium Aquamarine #66cdaa · ΔE 10.72 Nearest Tailwind class emerald-400 #00d492 · ΔE 4.5

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

Conversions

HEX

#40cd9f

RGB

rgb(64, 205, 159)

HSL

hsl(160.4, 58.5%, 52.7%)

HSV / HSB

hsv(160.4, 68.8%, 80.4%)

CMYK

cmyk(68.8%, 0%, 22.4%, 19.6%)

LAB

lab(74.35, -48.26, 12.15)

LCH

lch(74.35, 49.77, 165.87)

OKLCH

oklch(76.2%, 0.1373, 166.91)

HWB

hwb(160.4, 25.1%, 19.6%)

Harmony colors

Complementary

#cd406e

Analogous

#40cd58

#40cd9f

#40b4cd

Triadic

#40cd9f

#9f40cd

#cd9f40

Split-complementary

#40cd9f

#cd40b4

#cd5840

Tetradic

#40cd9f

#406ecd

#cd406e

#cd9f40

Square

#40cd9f

#5840cd

#cd406e

#b4cd40

Shades

Color #40cd9f mixed toward black.

#2eb287

#258e6c

#1c6b51

#134736

#09241b

Tints

Color #40cd9f mixed toward white.

#60d5af

#80debf

#9fe6cf

#bfeedf

#dff7ef

Tones

Color #40cd9f mixed toward gray.

#4cc19b

#57b597

#63aa93

#6f9e8f

#7b928a

Accessibility

Aa White text on this color

2.01:1

Aa Black text on this color

10.45:1

Black text reads better on this background (10.45:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#9395ac · ΔE 32.3

Deuteranopia

#8c81ae · ΔE 39.9

Tritanopia

#50b5b7 · ΔE 16.4

Achromatopsia

#b7b7b7 · ΔE 24.9

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

Code

CSS

background-color: #40cd9f;

Tailwind (arbitrary value)

bg-[#40cd9f]

Related colors

Aquamarine #7fffd4

Medium Aquamarine #66cdaa

Medium Spring Green #00fa9a

Mint Cream #f5fffa

Spring Green #00ff7f

Turquoise #40e0d0

Frequently asked questions

#40cd9f (#40cd9f) is rgb(64, 205, 159) in RGB.

No, #40cd9f 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 #40cd9f, or check how it holds up for accessibility.

Generate a palette → Check contrast