#288F5B#288F5B

#288F5B is a mid, vivid green. Relative luminance 0.209; OKLCH L 57.9% C 0.123 H 156.5°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#288F5B
RGB	rgb(40, 143, 91)
HSL	hsl(150, 56%, 36%)
HSV	hsv(150, 72%, 56%)
CMYK	cmyk(72%, 0%, 36.4%, 43.9%)
CIE-LAB	lab(52.78, -41.64, 19.47)
CIE-LCH	lch(52.78, 45.97, 154.94°)
OKLab	oklab(57.87% -0.1128 0.0489)
OKLCH	oklch(57.87% 0.123 156.5)
XYZ	xyz(12.5847, 20.8499, 13.2567)
Luminance	0.2085 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288F5B #8F285C

analogous

#288F28 #288F5B #288F8E

triadic

#288F5B #5B288F #8F5B28

tetradic

#288F5B #28288F #8F285C #8F8E28

square

#288F5B #28288F #8F285C #8F8E28

split-complementary

#288F5B #8E288F #8F2828

monochromatic

#0D2F1E #1B5F3D #288F5B #35BF79 #5FD298

Accessibility & contrast

On white

4.06

#288F5B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#288F5B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288F5B

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288F5B	#FFFFFF	#000000	##000000
##288F5B	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8358

Deuteranopia (green-blind)

#817A5E

Tritanopia (blue-blind)

#008E82

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288f5b;
/* rgb */ color: rgb(40, 143, 91);
/* oklch */ color: oklch(57.9% 0.123 156.5);

Tailwind

colors: {
  custom: {
    50: '#70b189',
    500: '#288f5b',
    950: '#000000',
  },
}

SCSS

$custom: #288f5b;
$custom-light: #70b189;
$custom-dark: #000000;

JSON

{
  "hex": "#288f5b",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 91
  },
  "hsl": {
    "h": 149.709,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.57865,
    "c": 0.12291,
    "h": 156.5
  },
  "luminance": 0.20851
}

Semantic roles & 50–950 ramp

primary

#288F5B

secondary

#B85B8A

accent

#4895E0

background

#F7FAF8

surface

#EDF5F0

border

#C8CFCB

text

#09110B

muted

#7B807C

Preview Lab

Preview with #288F5B

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

Preview Lab → · Contrast checker → · Palette generator →