#288B52#288B52

#288B52 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.6% C 0.126 H 153.6°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#288B52
RGB	rgb(40, 139, 82)
HSL	hsl(145, 55%, 35%)
HSV	hsv(145, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 41%, 45.5%)
CIE-LAB	lab(51.30, -41.84, 22.49)
CIE-LCH	lch(51.30, 47.50, 151.74°)
OKLab	oklab(56.58% -0.1129 0.056)
OKLCH	oklch(56.58% 0.126 153.6)
XYZ	xyz(11.6297, 19.5243, 11.1367)
Luminance	0.1953 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B52 #8B2861

analogous

#2F8B28 #288B52 #288B84

triadic

#288B52 #52288B #8B5228

tetradic

#288B52 #282F8B #8B2861 #8B8428

square

#288B52 #282F8B #8B2861 #8B8428

split-complementary

#288B52 #84288B #8B282F

monochromatic

#0D2C1A #1A5B36 #288B52 #36BB6E #5DD08E

Accessibility & contrast

On white

4.28

#288B52 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#288B52 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B52

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B52	#FFFFFF	#000000	##000000
##288B52	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F4E

Deuteranopia (green-blind)

#7F7756

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b52;
/* rgb */ color: rgb(40, 139, 82);
/* oklch */ color: oklch(56.6% 0.126 153.6);

Tailwind

colors: {
  custom: {
    50: '#70ae83',
    500: '#288b52',
    950: '#000000',
  },
}

SCSS

$custom: #288b52;
$custom-light: #70ae83;
$custom-dark: #000000;

JSON

{
  "hex": "#288b52",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 82
  },
  "hsl": {
    "h": 145.455,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56584,
    "c": 0.12603,
    "h": 153.6
  },
  "luminance": 0.19526
}

Semantic roles & 50–950 ramp

primary

#288B52

secondary

#B6598E

accent

#499FDF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #288B52

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

Preview Lab → · Contrast checker → · Palette generator →