#288F57#288F57

#288F57 is a mid, vivid green. Relative luminance 0.208; OKLCH L 57.8% C 0.127 H 154.8°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#288F57
RGB	rgb(40, 143, 87)
HSL	hsl(147, 56%, 36%)
HSV	hsv(147, 72%, 56%)
CMYK	cmyk(72%, 0%, 39.2%, 43.9%)
CIE-LAB	lab(52.71, -42.46, 21.60)
CIE-LCH	lch(52.71, 47.64, 153.04°)
OKLab	oklab(57.78% -0.1147 0.054)
OKLCH	oklch(57.78% 0.127 154.8)
XYZ	xyz(12.4167, 20.7828, 12.3721)
Luminance	0.2078 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288F57 #8F2860

analogous

#2C8F28 #288F57 #288F8A

triadic

#288F57 #57288F #8F5728

tetradic

#288F57 #282C8F #8F2860 #8F8A28

square

#288F57 #282C8F #8F2860 #8F8A28

split-complementary

#288F57 #8A288F #8F282C

monochromatic

#0D2F1D #1B5F3A #288F57 #35BF74 #5FD294

Accessibility & contrast

On white

4.07

#288F57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#288F57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288F57

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288F57	#FFFFFF	#000000	##000000
##288F57	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8353

Deuteranopia (green-blind)

#827A5B

Tritanopia (blue-blind)

#008D81

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288f57;
/* rgb */ color: rgb(40, 143, 87);
/* oklch */ color: oklch(57.8% 0.127 154.8);

Tailwind

colors: {
  custom: {
    50: '#70b187',
    500: '#288f57',
    950: '#000000',
  },
}

SCSS

$custom: #288f57;
$custom-light: #70b187;
$custom-dark: #000000;

JSON

{
  "hex": "#288f57",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 87
  },
  "hsl": {
    "h": 147.379,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.5778,
    "c": 0.12677,
    "h": 154.8
  },
  "luminance": 0.20784
}

Semantic roles & 50–950 ramp

primary

#288F57

secondary

#B85B8D

accent

#489BE0

background

#F7FBF8

surface

#EDF6EF

border

#C8D0CA

text

#09110B

muted

#7B807C

Preview Lab

Preview with #288F57

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

Preview Lab → · Contrast checker → · Palette generator →