#288D51#288D51

#288D51 is a mid, vivid green. Relative luminance 0.201; OKLCH L 57.1% C 0.130 H 152.8°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#288D51
RGB	rgb(40, 141, 81)
HSL	hsl(144, 56%, 35%)
HSV	hsv(144, 72%, 55%)
CMYK	cmyk(71.6%, 0%, 42.6%, 44.7%)
CIE-LAB	lab(51.94, -42.83, 23.90)
CIE-LCH	lch(51.94, 49.05, 150.84°)
OKLab	oklab(57.11% -0.1155 0.0592)
OKLCH	oklch(57.11% 0.13 152.8)
XYZ	xyz(11.8841, 20.0936, 11.0351)
Luminance	0.2009 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D51 #8D2864

analogous

#328D28 #288D51 #288D83

triadic

#288D51 #51288D #8D5128

tetradic

#288D51 #28328D #8D2864 #8D8328

square

#288D51 #28328D #8D2864 #8D8328

split-complementary

#288D51 #83288D #8D2832

monochromatic

#0D2E1A #1A5D36 #288D51 #36BD6C #5ED18D

Accessibility & contrast

On white

4.18

#288D51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#288D51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D51

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D51	#FFFFFF	#000000	##000000
##288D51	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D814D

Deuteranopia (green-blind)

#817855

Tritanopia (blue-blind)

#008B7E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288d51;
/* rgb */ color: rgb(40, 141, 81);
/* oklch */ color: oklch(57.1% 0.130 152.8);

Tailwind

colors: {
  custom: {
    50: '#70af82',
    500: '#288d51',
    950: '#000000',
  },
}

SCSS

$custom: #288d51;
$custom-light: #70af82;
$custom-dark: #000000;

JSON

{
  "hex": "#288d51",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 81
  },
  "hsl": {
    "h": 144.356,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57112,
    "c": 0.12981,
    "h": 152.8
  },
  "luminance": 0.20095
}

Semantic roles & 50–950 ramp

primary

#288D51

secondary

#B75A91

accent

#49A2DF

background

#F7FAF8

surface

#EDF5EF

border

#C8CFCA

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #288D51

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

Preview Lab → · Contrast checker → · Palette generator →