#288A55#288A55

#288A55 is a mid, vivid green. Relative luminance 0.193; OKLCH L 56.4% C 0.122 H 155.1°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#288A55
RGB	rgb(40, 138, 85)
HSL	hsl(148, 55%, 35%)
HSV	hsv(148, 71%, 54%)
CMYK	cmyk(71%, 0%, 38.4%, 45.9%)
CIE-LAB	lab(51.02, -40.83, 20.45)
CIE-LCH	lch(51.02, 45.67, 153.39°)
OKLab	oklab(56.37% -0.1104 0.0512)
OKLCH	oklch(56.37% 0.122 155.1)
XYZ	xyz(11.6022, 19.2827, 11.7030)
Luminance	0.1928 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A55 #8A285D

analogous

#2C8A28 #288A55 #288A86

triadic

#288A55 #55288A #8A5528

tetradic

#288A55 #282C8A #8A285D #8A8628

square

#288A55 #282C8A #8A285D #8A8628

split-complementary

#288A55 #86288A #8A282C

monochromatic

#0C2B1B #1A5B38 #288A55 #36B972 #5DD091

Accessibility & contrast

On white

4.32

#288A55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#288A55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A55

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A55	#FFFFFF	#000000	##000000
##288A55	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897F51

Deuteranopia (green-blind)

#7D7658

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #288a55;
/* rgb */ color: rgb(40, 138, 85);
/* oklch */ color: oklch(56.4% 0.122 155.1);

Tailwind

colors: {
  custom: {
    50: '#6fad85',
    500: '#288a55',
    950: '#000000',
  },
}

SCSS

$custom: #288a55;
$custom-light: #6fad85;
$custom-dark: #000000;

JSON

{
  "hex": "#288a55",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 85
  },
  "hsl": {
    "h": 147.551,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.56372,
    "c": 0.12169,
    "h": 155.1
  },
  "luminance": 0.19284
}

Semantic roles & 50–950 ramp

primary

#288A55

secondary

#B5598B

accent

#499ADE

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288A55

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

Preview Lab → · Contrast checker → · Palette generator →