#288B58#288B58

#288B58 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.7% C 0.120 H 156.2°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#288B58
RGB	rgb(40, 139, 88)
HSL	hsl(149, 55%, 35%)
HSV	hsv(149, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 36.7%, 45.5%)
CIE-LAB	lab(51.40, -40.63, 19.29)
CIE-LCH	lch(51.40, 44.97, 154.60°)
OKLab	oklab(56.71% -0.11 0.0485)
OKLCH	oklch(56.71% 0.12 156.2)
XYZ	xyz(11.8680, 19.6196, 12.3921)
Luminance	0.1962 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B58 #8B285B

analogous

#2A8B28 #288B58 #288B89

triadic

#288B58 #58288B #8B5828

tetradic

#288B58 #282A8B #8B285B #8B8928

square

#288B58 #282A8B #8B285B #8B8928

split-complementary

#288B58 #89288B #8B282A

monochromatic

#0D2C1C #1A5B3A #288B58 #36BB76 #5DD095

Accessibility & contrast

On white

4.26

#288B58 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#288B58 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B58

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B58	#FFFFFF	#000000	##000000
##288B58	1.00	4.26	4.92	4.92
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A8055

Deuteranopia (green-blind)

#7E775B

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b58;
/* rgb */ color: rgb(40, 139, 88);
/* oklch */ color: oklch(56.7% 0.120 156.2);

Tailwind

colors: {
  custom: {
    50: '#70ae87',
    500: '#288b58',
    950: '#000000',
  },
}

SCSS

$custom: #288b58;
$custom-light: #70ae87;
$custom-dark: #000000;

JSON

{
  "hex": "#288b58",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 88
  },
  "hsl": {
    "h": 149.091,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.5671,
    "c": 0.1202,
    "h": 156.2
  },
  "luminance": 0.19621
}

Semantic roles & 50–950 ramp

primary

#288B58

secondary

#B65989

accent

#4996DF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288B58

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

Preview Lab → · Contrast checker → · Palette generator →