#288F55#288F55

#288F55 is a mid, vivid green. Relative luminance 0.208; OKLCH L 57.7% C 0.129 H 154.0°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#288F55
RGB	rgb(40, 143, 85)
HSL	hsl(146, 56%, 36%)
HSV	hsv(146, 72%, 56%)
CMYK	cmyk(72%, 0%, 40.6%, 43.9%)
CIE-LAB	lab(52.68, -42.86, 22.66)
CIE-LCH	lch(52.68, 48.48, 152.14°)
OKLab	oklab(57.74% -0.1157 0.0564)
OKLCH	oklch(57.74% 0.129 154)
XYZ	xyz(12.3361, 20.7505, 11.9477)
Luminance	0.2075 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288F55 #8F2862

analogous

#2E8F28 #288F55 #288F88

triadic

#288F55 #55288F #8F5528

tetradic

#288F55 #282E8F #8F2862 #8F8828

square

#288F55 #282E8F #8F2862 #8F8828

split-complementary

#288F55 #88288F #8F282E

monochromatic

#0D2F1C #1B5F39 #288F55 #35BF71 #5FD291

Accessibility & contrast

On white

4.08

#288F55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#288F55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288F55

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288F55	#FFFFFF	#000000	##000000
##288F55	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8351

Deuteranopia (green-blind)

#827A59

Tritanopia (blue-blind)

#008D80

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288f55;
/* rgb */ color: rgb(40, 143, 85);
/* oklch */ color: oklch(57.7% 0.129 154.0);

Tailwind

colors: {
  custom: {
    50: '#71b185',
    500: '#288f55',
    950: '#000000',
  },
}

SCSS

$custom: #288f55;
$custom-light: #71b185;
$custom-dark: #000000;

JSON

{
  "hex": "#288f55",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 85
  },
  "hsl": {
    "h": 146.214,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.57739,
    "c": 0.12871,
    "h": 154
  },
  "luminance": 0.20752
}

Semantic roles & 50–950 ramp

primary

#288F55

secondary

#B85B8F

accent

#489DE0

background

#F7FBF8

surface

#EDF6EF

border

#C8D0CA

text

#09110B

muted

#7B807C

Preview Lab

Preview with #288F55

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

Preview Lab → · Contrast checker → · Palette generator →