#21A837#21A837

#21A837 is a light, vivid green. Relative luminance 0.286; OKLCH L 64.0% C 0.189 H 145.0°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#21A837
RGB	rgb(33, 168, 55)
HSL	hsl(130, 67%, 39%)
HSV	hsv(130, 80%, 66%)
CMYK	cmyk(80.4%, 0%, 67.3%, 34.1%)
CIE-LAB	lab(60.43, -57.34, 46.88)
CIE-LCH	lch(60.43, 74.06, 140.73°)
OKLab	oklab(64% -0.1547 0.1084)
OKLCH	oklch(64% 0.189 145)
XYZ	xyz(15.3183, 28.6026, 8.3272)
Luminance	0.2860 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A837 #A82192

analogous

#4FA821 #21A837 #21A87B

triadic

#21A837 #3721A8 #A83721

tetradic

#21A837 #214FA8 #A82192 #A87B21

square

#21A837 #214FA8 #A82192 #A87B21

split-complementary

#21A837 #7B21A8 #A8214F

monochromatic

#0D4216 #177526 #21A837 #30D64B #63E077

Accessibility & contrast

On white

3.12

#21A837 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#21A837 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21A837

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A837	#FFFFFF	#000000	##000000
##21A837	1.00	3.12	6.72	6.72
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB9828

Deuteranopia (green-blind)

#9C8E41

Tritanopia (blue-blind)

#00A491

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #21a837;
/* rgb */ color: rgb(33, 168, 55);
/* oklch */ color: oklch(64.0% 0.189 145.0);

Tailwind

colors: {
  custom: {
    50: '#75c373',
    500: '#21a837',
    950: '#000000',
  },
}

SCSS

$custom: #21a837;
$custom-light: #75c373;
$custom-dark: #000000;

JSON

{
  "hex": "#21a837",
  "rgb": {
    "r": 33,
    "g": 168,
    "b": 55
  },
  "hsl": {
    "h": 129.778,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.63999,
    "c": 0.18885,
    "h": 145
  },
  "luminance": 0.28604
}

Semantic roles & 50–950 ramp

primary

#21A837

secondary

#C55FB5

accent

#3ECEEA

background

#F7FCF7

surface

#EEF8ED

border

#C9D1C8

text

#0A1308

muted

#7C827B

Preview Lab

Preview with #21A837

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

Preview Lab → · Contrast checker → · Palette generator →