#288B40#288B40

#288B40 is a mid, vivid green. Relative luminance 0.193; OKLCH L 56.3% C 0.143 H 147.7°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#288B40
RGB	rgb(40, 139, 64)
HSL	hsl(135, 55%, 35%)
HSV	hsv(135, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 54%, 45.5%)
CIE-LAB	lab(51.02, -44.98, 31.82)
CIE-LCH	lch(51.02, 55.09, 144.72°)
OKLab	oklab(56.27% -0.1212 0.0766)
OKLCH	oklch(56.27% 0.143 147.7)
XYZ	xyz(11.0323, 19.2853, 7.9905)
Luminance	0.1929 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B40 #8B2873

analogous

#428B28 #288B40 #288B71

triadic

#288B40 #40288B #8B4028

tetradic

#288B40 #28428B #8B2873 #8B7128

square

#288B40 #28428B #8B2873 #8B7128

split-complementary

#288B40 #71288B #8B2842

monochromatic

#0D2C14 #1A5B2A #288B40 #36BB56 #5DD079

Accessibility & contrast

On white

4.32

#288B40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#288B40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B40

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B40	#FFFFFF	#000000	##000000
##288B40	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7F39

Deuteranopia (green-blind)

#817646

Tritanopia (blue-blind)

#00887A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #288b40;
/* rgb */ color: rgb(40, 139, 64);
/* oklch */ color: oklch(56.3% 0.143 147.7);

Tailwind

colors: {
  custom: {
    50: '#70ae76',
    500: '#288b40',
    950: '#000000',
  },
}

SCSS

$custom: #288b40;
$custom-light: #70ae76;
$custom-dark: #000000;

JSON

{
  "hex": "#288b40",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 64
  },
  "hsl": {
    "h": 134.545,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56267,
    "c": 0.14336,
    "h": 147.7
  },
  "luminance": 0.19287
}

Semantic roles & 50–950 ramp

primary

#288B40

secondary

#B6599F

accent

#49BADF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081009

muted

#7B7F7B

Preview Lab

Preview with #288B40

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

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