#21BB38#21BB38

#21BB38 is a light, highly saturated green. Relative luminance 0.361; OKLCH L 69.2% C 0.210 H 144.5°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX#21BB38
RGBrgb(33, 187, 56)
HSLhsl(129, 70%, 43%)
HSVhsv(129, 82%, 73%)
CMYKcmyk(82.4%, 0%, 70.1%, 26.7%)
CIE-LABlab(66.63, -63.26, 53.11)
CIE-LCHlch(66.63, 82.60, 139.98°)
OKLaboklab(69.16% -0.1707 0.1216)
OKLCHoklch(69.16% 0.21 144.5)
XYZxyz(19.1100, 36.1471, 9.7105)
Luminance0.3615 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21BB38 #BB21A4
analogous
#57BB21 #21BB38 #21BB85
triadic
#21BB38 #3821BB #BB3821
tetradic
#21BB38 #2157BB #BB21A4 #BB8521
square
#21BB38 #2157BB #BB21A4 #BB8521
split-complementary
#21BB38 #8521BB #BB2157
monochromatic
#0F5319 #188728 #21BB38 #3DDD54 #71E682

Accessibility & contrast

On white

2.55
#21BB38 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.23
#21BB38 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21BB38
8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21BB38#FFFFFF#000000##000000
##21BB381.002.558.238.23
#FFFFFF2.551.0021.0021.00
#0000008.2321.001.001.00
##0000008.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#BEA924
Deuteranopia (green-blind)
#AE9E45
Tritanopia (blue-blind)
#00B6A1
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #21bb38;
/* rgb */ color: rgb(33, 187, 56);
/* oklch */ color: oklch(69.2% 0.210 144.5);
Tailwind
colors: {
  custom: {
    50: '#7ad176',
    500: '#21bb38',
    950: '#000000',
  },
}
SCSS
$custom: #21bb38;
$custom-light: #7ad176;
$custom-dark: #000000;
JSON
{
  "hex": "#21bb38",
  "rgb": {
    "r": 33,
    "g": 187,
    "b": 56
  },
  "hsl": {
    "h": 128.961,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.69159,
    "c": 0.2096,
    "h": 144.5
  },
  "luminance": 0.3615
}

Semantic roles & 50–950 ramp

primary
#21BB38
secondary
#CC6BBE
accent
#3BD2ED
background
#F8FDF7
surface
#EFFAED
border
#CAD3C8
text
#0B1409
muted
#7C837B

Preview Lab

Preview with #21BB38

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

Preview Lab → · Contrast checker → · Palette generator →

#21BB38 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva