#21AD40#21AD40

#21AD40 is a light, vivid green. Relative luminance 0.306; OKLCH L 65.5% C 0.188 H 146.1°. Best body text is #000000 at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#21AD40
RGB	rgb(33, 173, 64)
HSL	hsl(133, 68%, 40%)
HSV	hsv(133, 81%, 68%)
CMYK	cmyk(80.9%, 0%, 63%, 32.2%)
CIE-LAB	lab(62.15, -57.96, 44.86)
CIE-LCH	lch(62.15, 73.29, 142.26°)
OKLab	oklab(65.46% -0.156 0.105)
OKLCH	oklch(65.46% 0.188 146.1)
XYZ	xyz(16.4949, 30.5786, 9.8824)
Luminance	0.3058 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21AD40 #AD218E

analogous

#48AD21 #21AD40 #21AD86

triadic

#21AD40 #4021AD #AD4021

tetradic

#21AD40 #2148AD #AD218E #AD8621

square

#21AD40 #2148AD #AD218E #AD8621

split-complementary

#21AD40 #8621AD #AD2148

monochromatic

#0D461A #177A2D #21AD40 #33D858 #66E282

Accessibility & contrast

On white

2.95

#21AD40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.12

#21AD40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21AD40

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21AD40	#FFFFFF	#000000	##000000
##21AD40	1.00	2.95	7.12	7.12
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.12	21.00	1.00	1.00
##000000	7.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09D34

Deuteranopia (green-blind)

#A09249

Tritanopia (blue-blind)

#00A996

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #21ad40;
/* rgb */ color: rgb(33, 173, 64);
/* oklch */ color: oklch(65.5% 0.188 146.1);

Tailwind

colors: {
  custom: {
    50: '#76c779',
    500: '#21ad40',
    950: '#000000',
  },
}

SCSS

$custom: #21ad40;
$custom-light: #76c779;
$custom-dark: #000000;

JSON

{
  "hex": "#21ad40",
  "rgb": {
    "r": 33,
    "g": 173,
    "b": 64
  },
  "hsl": {
    "h": 133.286,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.65456,
    "c": 0.18805,
    "h": 146.1
  },
  "luminance": 0.30581
}

Semantic roles & 50–950 ramp

primary

#21AD40

secondary

#C762B1

accent

#3DC4EB

background

#F7FCF7

surface

#EEF8EE

border

#C9D1C9

text

#0A1309

muted

#7C827B

Preview Lab

Preview with #21AD40

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →