#288C55#288C55

#288C55 is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.9% C 0.125 H 154.7°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#288C55
RGB	rgb(40, 140, 85)
HSL	hsl(147, 56%, 35%)
HSV	hsv(147, 71%, 55%)
CMYK	cmyk(71.4%, 0%, 39.3%, 45.1%)
CIE-LAB	lab(51.68, -41.65, 21.34)
CIE-LCH	lch(51.68, 46.80, 152.87°)
OKLab	oklab(56.92% -0.1125 0.0533)
OKLCH	oklch(56.92% 0.125 154.7)
XYZ	xyz(11.8918, 19.8618, 11.7996)
Luminance	0.1986 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C55 #8C285F

analogous

#2D8C28 #288C55 #288C87

triadic

#288C55 #55288C #8C5528

tetradic

#288C55 #282D8C #8C285F #8C8728

square

#288C55 #282D8C #8C285F #8C8728

split-complementary

#288C55 #87288C #8C282D

monochromatic

#0D2D1B #1A5C38 #288C55 #36BC72 #5ED191

Accessibility & contrast

On white

4.22

#288C55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#288C55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C55

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C55	#FFFFFF	#000000	##000000
##288C55	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C8051

Deuteranopia (green-blind)

#7F7859

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #288c55;
/* rgb */ color: rgb(40, 140, 85);
/* oklch */ color: oklch(56.9% 0.125 154.7);

Tailwind

colors: {
  custom: {
    50: '#70ae85',
    500: '#288c55',
    950: '#000000',
  },
}

SCSS

$custom: #288c55;
$custom-light: #70ae85;
$custom-dark: #000000;

JSON

{
  "hex": "#288c55",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 85
  },
  "hsl": {
    "h": 147,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.56919,
    "c": 0.12451,
    "h": 154.7
  },
  "luminance": 0.19863
}

Semantic roles & 50–950 ramp

primary

#288C55

secondary

#B65A8D

accent

#499BDF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288C55

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

Preview Lab → · Contrast checker → · Palette generator →