#288E4B#288E4B

#288E4B is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.3% C 0.137 H 150.6°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#288E4B
RGB	rgb(40, 142, 75)
HSL	hsl(141, 56%, 36%)
HSV	hsv(141, 72%, 56%)
CMYK	cmyk(71.8%, 0%, 47.2%, 44.3%)
CIE-LAB	lab(52.18, -44.32, 27.46)
CIE-LCH	lch(52.18, 52.14, 148.22°)
OKLab	oklab(57.28% -0.1193 0.0673)
OKLCH	oklch(57.28% 0.137 150.6)
XYZ	xyz(11.8171, 20.3038, 9.9515)
Luminance	0.2031 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E4B #8E286B

analogous

#388E28 #288E4B #288E7E

triadic

#288E4B #4B288E #8E4B28

tetradic

#288E4B #28388E #8E286B #8E7E28

square

#288E4B #28388E #8E286B #8E7E28

split-complementary

#288E4B #7E288E #8E2838

monochromatic

#0D2F19 #1B5E32 #288E4B #35BE64 #5FD286

Accessibility & contrast

On white

4.15

#288E4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#288E4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E4B

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E4B	#FFFFFF	#000000	##000000
##288E4B	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8246

Deuteranopia (green-blind)

#827950

Tritanopia (blue-blind)

#008C7E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288e4b;
/* rgb */ color: rgb(40, 142, 75);
/* oklch */ color: oklch(57.3% 0.137 150.6);

Tailwind

colors: {
  custom: {
    50: '#70b07e',
    500: '#288e4b',
    950: '#000000',
  },
}

SCSS

$custom: #288e4b;
$custom-light: #70b07e;
$custom-dark: #000000;

JSON

{
  "hex": "#288e4b",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 75
  },
  "hsl": {
    "h": 140.588,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57276,
    "c": 0.13702,
    "h": 150.6
  },
  "luminance": 0.20305
}

Semantic roles & 50–950 ramp

primary

#288E4B

secondary

#B75B97

accent

#48ACDF

background

#F7FAF7

surface

#EDF5EE

border

#C8CFC9

text

#09110A

muted

#7B807C

Preview Lab

Preview with #288E4B

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

Preview Lab → · Contrast checker → · Palette generator →