#21901B#21901B

#21901B is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.1% C 0.179 H 142.3°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#21901B
RGB	rgb(33, 144, 27)
HSL	hsl(117, 68%, 34%)
HSV	hsv(117, 81%, 56%)
CMYK	cmyk(77.1%, 0%, 81.3%, 43.5%)
CIE-LAB	lab(52.23, -51.93, 49.03)
CIE-LCH	lch(52.23, 71.42, 136.65°)
OKLab	oklab(57.12% -0.1412 0.1092)
OKLCH	oklch(57.12% 0.179 142.3)
XYZ	xyz(10.7976, 20.3477, 4.3951)
Luminance	0.2035 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21901B #8A1B90

analogous

#5B901B #21901B #1B904F

triadic

#21901B #1B2190 #901B21

tetradic

#21901B #1B5B90 #8A1B90 #904F1B

square

#21901B #1B5B90 #8A1B90 #904F1B

split-complementary

#21901B #4F1B90 #901B5B

monochromatic

#092908 #155C11 #21901B #2DC425 #50DD49

Accessibility & contrast

On white

4.14

#21901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#21901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21901B

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21901B	#FFFFFF	#000000	##000000
##21901B	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938200

Deuteranopia (green-blind)

#877929

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #21901b;
/* rgb */ color: rgb(33, 144, 27);
/* oklch */ color: oklch(57.1% 0.179 142.3);

Tailwind

colors: {
  custom: {
    50: '#71b262',
    500: '#21901b',
    950: '#000000',
  },
}

SCSS

$custom: #21901b;
$custom-light: #71b262;
$custom-dark: #000000;

JSON

{
  "hex": "#21901b",
  "rgb": {
    "r": 33,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 116.923,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.5712,
    "c": 0.17853,
    "h": 142.3
  },
  "luminance": 0.20349
}

Semantic roles & 50–950 ramp

primary

#21901B

secondary

#B948BF

accent

#3DEBE2

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091106

muted

#7B807A

Preview Lab

Preview with #21901B

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

Preview Lab → · Contrast checker → · Palette generator →