#288D57#288D57

#288D57 is a mid, vivid green. Relative luminance 0.202; OKLCH L 57.2% C 0.124 H 155.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#288D57
RGB	rgb(40, 141, 87)
HSL	hsl(148, 56%, 35%)
HSV	hsv(148, 72%, 55%)
CMYK	cmyk(71.6%, 0%, 38.3%, 44.7%)
CIE-LAB	lab(52.05, -41.65, 20.71)
CIE-LCH	lch(52.05, 46.52, 153.56°)
OKLab	oklab(57.23% -0.1126 0.0519)
OKLCH	oklch(57.23% 0.124 155.3)
XYZ	xyz(12.1191, 20.1876, 12.2729)
Luminance	0.2019 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D57 #8D285E

analogous

#2B8D28 #288D57 #288D89

triadic

#288D57 #57288D #8D5728

tetradic

#288D57 #282B8D #8D285E #8D8928

square

#288D57 #282B8D #8D285E #8D8928

split-complementary

#288D57 #89288D #8D282B

monochromatic

#0D2E1C #1A5D3A #288D57 #36BD74 #5ED194

Accessibility & contrast

On white

4.17

#288D57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#288D57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D57

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D57	#FFFFFF	#000000	##000000
##288D57	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C8153

Deuteranopia (green-blind)

#80795B

Tritanopia (blue-blind)

#008C7F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288d57;
/* rgb */ color: rgb(40, 141, 87);
/* oklch */ color: oklch(57.2% 0.124 155.3);

Tailwind

colors: {
  custom: {
    50: '#70af87',
    500: '#288d57',
    950: '#000000',
  },
}

SCSS

$custom: #288d57;
$custom-light: #70af87;
$custom-dark: #000000;

JSON

{
  "hex": "#288d57",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 87
  },
  "hsl": {
    "h": 147.921,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57234,
    "c": 0.12397,
    "h": 155.3
  },
  "luminance": 0.20189
}

Semantic roles & 50–950 ramp

primary

#288D57

secondary

#B75A8C

accent

#4999DF

background

#F7FAF8

surface

#EDF5EF

border

#C8CFCA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288D57

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

Preview Lab → · Contrast checker → · Palette generator →