#288E51#288E51

#288E51 is a mid, vivid green. Relative luminance 0.204; OKLCH L 57.4% C 0.131 H 152.7°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#288E51
RGB	rgb(40, 142, 81)
HSL	hsl(144, 56%, 36%)
HSV	hsv(144, 72%, 56%)
CMYK	cmyk(71.8%, 0%, 43%, 44.3%)
CIE-LAB	lab(52.28, -43.23, 24.33)
CIE-LCH	lch(52.28, 49.61, 150.63°)
OKLab	oklab(57.39% -0.1165 0.0603)
OKLCH	oklch(57.39% 0.131 152.7)
XYZ	xyz(12.0322, 20.3899, 11.0845)
Luminance	0.2039 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E51 #8E2865

analogous

#328E28 #288E51 #288E84

triadic

#288E51 #51288E #8E5128

tetradic

#288E51 #28328E #8E2865 #8E8428

square

#288E51 #28328E #8E2865 #8E8428

split-complementary

#288E51 #84288E #8E2832

monochromatic

#0D2F1B #1B5E36 #288E51 #35BE6C #5FD28D

Accessibility & contrast

On white

4.14

#288E51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#288E51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E51

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E51	#FFFFFF	#000000	##000000
##288E51	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E824D

Deuteranopia (green-blind)

#827955

Tritanopia (blue-blind)

#008C7F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #288e51;
/* rgb */ color: rgb(40, 142, 81);
/* oklch */ color: oklch(57.4% 0.131 152.7);

Tailwind

colors: {
  custom: {
    50: '#70b082',
    500: '#288e51',
    950: '#000000',
  },
}

SCSS

$custom: #288e51;
$custom-light: #70b082;
$custom-dark: #000000;

JSON

{
  "hex": "#288e51",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 81
  },
  "hsl": {
    "h": 144.118,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57386,
    "c": 0.1312,
    "h": 152.7
  },
  "luminance": 0.20391
}

Semantic roles & 50–950 ramp

primary

#288E51

secondary

#B75B92

accent

#48A3DF

background

#F7FAF8

surface

#EDF5EF

border

#C8CFCA

text

#08110A

muted

#7B807C

Preview Lab

Preview with #288E51

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

Preview Lab → · Contrast checker → · Palette generator →