#288D4B#288D4B

#288D4B is a mid, vivid green. Relative luminance 0.200; OKLCH L 57.0% C 0.136 H 150.7°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#288D4B
RGB	rgb(40, 141, 75)
HSL	hsl(141, 56%, 35%)
HSV	hsv(141, 72%, 55%)
CMYK	cmyk(71.6%, 0%, 46.8%, 44.7%)
CIE-LAB	lab(51.85, -43.93, 27.04)
CIE-LCH	lch(51.85, 51.59, 148.39°)
OKLab	oklab(57% -0.1183 0.0663)
OKLCH	oklch(57% 0.136 150.7)
XYZ	xyz(11.6690, 20.0076, 9.9021)
Luminance	0.2001 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D4B #8D286A

analogous

#378D28 #288D4B #288D7D

triadic

#288D4B #4B288D #8D4B28

tetradic

#288D4B #28378D #8D286A #8D7D28

square

#288D4B #28378D #8D286A #8D7D28

split-complementary

#288D4B #7D288D #8D2837

monochromatic

#0D2E18 #1A5D32 #288D4B #36BD64 #5ED186

Accessibility & contrast

On white

4.20

#288D4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#288D4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D4B

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D4B	#FFFFFF	#000000	##000000
##288D4B	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8146

Deuteranopia (green-blind)

#817850

Tritanopia (blue-blind)

#008B7D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288d4b;
/* rgb */ color: rgb(40, 141, 75);
/* oklch */ color: oklch(57.0% 0.136 150.7);

Tailwind

colors: {
  custom: {
    50: '#70af7e',
    500: '#288d4b',
    950: '#000000',
  },
}

SCSS

$custom: #288d4b;
$custom-light: #70af7e;
$custom-dark: #000000;

JSON

{
  "hex": "#288d4b",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 75
  },
  "hsl": {
    "h": 140.792,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57001,
    "c": 0.13564,
    "h": 150.7
  },
  "luminance": 0.20009
}

Semantic roles & 50–950 ramp

primary

#288D4B

secondary

#B75A97

accent

#49ABDF

background

#F7FAF7

surface

#EDF5EE

border

#C8CFC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #288D4B

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

Preview Lab → · Contrast checker → · Palette generator →