#288E5A#288E5A

#288E5A is a mid, vivid green. Relative luminance 0.205; OKLCH L 57.6% C 0.122 H 156.4°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#288E5A
RGB	rgb(40, 142, 90)
HSL	hsl(149, 56%, 36%)
HSV	hsv(149, 72%, 56%)
CMYK	cmyk(71.8%, 0%, 36.6%, 44.3%)
CIE-LAB	lab(52.44, -41.44, 19.56)
CIE-LCH	lch(52.44, 45.83, 154.74°)
OKLab	oklab(57.57% -0.1122 0.0491)
OKLCH	oklch(57.57% 0.122 156.4)
XYZ	xyz(12.3924, 20.5339, 12.9812)
Luminance	0.2054 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E5A #8E285C

analogous

#298E28 #288E5A #288E8D

triadic

#288E5A #5A288E #8E5A28

tetradic

#288E5A #28298E #8E285C #8E8D28

square

#288E5A #28298E #8E285C #8E8D28

split-complementary

#288E5A #8D288E #8E2829

monochromatic

#0D2F1D #1B5E3C #288E5A #35BE78 #5FD297

Accessibility & contrast

On white

4.11

#288E5A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#288E5A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E5A

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E5A	#FFFFFF	#000000	##000000
##288E5A	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8357

Deuteranopia (green-blind)

#80795D

Tritanopia (blue-blind)

#008D81

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #288e5a;
/* rgb */ color: rgb(40, 142, 90);
/* oklch */ color: oklch(57.6% 0.122 156.4);

Tailwind

colors: {
  custom: {
    50: '#70b089',
    500: '#288e5a',
    950: '#000000',
  },
}

SCSS

$custom: #288e5a;
$custom-light: #70b089;
$custom-dark: #000000;

JSON

{
  "hex": "#288e5a",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 90
  },
  "hsl": {
    "h": 149.412,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57571,
    "c": 0.12248,
    "h": 156.4
  },
  "luminance": 0.20535
}

Semantic roles & 50–950 ramp

primary

#288E5A

secondary

#B75B8A

accent

#4895DF

background

#F7FAF8

surface

#EDF5F0

border

#C8CFCB

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288E5A

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

Preview Lab → · Contrast checker → · Palette generator →