#288D3F#288D3F

#288D3F is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.8% C 0.147 H 147.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#288D3F
RGB	rgb(40, 141, 63)
HSL	hsl(134, 56%, 35%)
HSV	hsv(134, 72%, 55%)
CMYK	cmyk(71.6%, 0%, 55.3%, 44.7%)
CIE-LAB	lab(51.68, -45.88, 33.13)
CIE-LCH	lch(51.68, 56.59, 144.17°)
OKLab	oklab(56.81% -0.1236 0.0794)
OKLCH	oklch(56.81% 0.147 147.3)
XYZ	xyz(11.2963, 19.8585, 7.9394)
Luminance	0.1986 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D3F #8D2876

analogous

#448D28 #288D3F #288D71

triadic

#288D3F #3F288D #8D3F28

tetradic

#288D3F #28448D #8D2876 #8D7128

square

#288D3F #28448D #8D2876 #8D7128

split-complementary

#288D3F #71288D #8D2844

monochromatic

#0D2E14 #1A5D2A #288D3F #36BD54 #5ED178

Accessibility & contrast

On white

4.22

#288D3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#288D3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D3F

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D3F	#FFFFFF	#000000	##000000
##288D3F	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8038

Deuteranopia (green-blind)

#837845

Tritanopia (blue-blind)

#008A7B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #288d3f;
/* rgb */ color: rgb(40, 141, 63);
/* oklch */ color: oklch(56.8% 0.147 147.3);

Tailwind

colors: {
  custom: {
    50: '#71af76',
    500: '#288d3f',
    950: '#000000',
  },
}

SCSS

$custom: #288d3f;
$custom-light: #71af76;
$custom-dark: #000000;

JSON

{
  "hex": "#288d3f",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 63
  },
  "hsl": {
    "h": 133.663,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.56806,
    "c": 0.14695,
    "h": 147.3
  },
  "luminance": 0.1986
}

Semantic roles & 50–950 ramp

primary

#288D3F

secondary

#B75AA2

accent

#49BDDF

background

#F7FAF7

surface

#EDF5ED

border

#C8CFC8

text

#091008

muted

#7B7F7B

Preview Lab

Preview with #288D3F

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

Preview Lab → · Contrast checker → · Palette generator →