#288E57#288E57

#288E57 is a mid, vivid green. Relative luminance 0.205; OKLCH L 57.5% C 0.125 H 155.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#288E57
RGB	rgb(40, 142, 87)
HSL	hsl(148, 56%, 36%)
HSV	hsv(148, 72%, 56%)
CMYK	cmyk(71.8%, 0%, 38.7%, 44.3%)
CIE-LAB	lab(52.38, -42.06, 21.16)
CIE-LCH	lch(52.38, 47.08, 153.30°)
OKLab	oklab(57.51% -0.1137 0.0529)
OKLCH	oklch(57.51% 0.125 155)
XYZ	xyz(12.2673, 20.4839, 12.3222)
Luminance	0.2049 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E57 #8E285F

analogous

#2C8E28 #288E57 #288E8A

triadic

#288E57 #57288E #8E5728

tetradic

#288E57 #282C8E #8E285F #8E8A28

square

#288E57 #282C8E #8E285F #8E8A28

split-complementary

#288E57 #8A288E #8E282C

monochromatic

#0D2F1C #1B5E3A #288E57 #35BE74 #5FD294

Accessibility & contrast

On white

4.12

#288E57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#288E57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E57

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E57	#FFFFFF	#000000	##000000
##288E57	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8253

Deuteranopia (green-blind)

#81795B

Tritanopia (blue-blind)

#008C80

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #288e57;
/* rgb */ color: rgb(40, 142, 87);
/* oklch */ color: oklch(57.5% 0.125 155.0);

Tailwind

colors: {
  custom: {
    50: '#70b087',
    500: '#288e57',
    950: '#000000',
  },
}

SCSS

$custom: #288e57;
$custom-light: #70b087;
$custom-dark: #000000;

JSON

{
  "hex": "#288e57",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 87
  },
  "hsl": {
    "h": 147.647,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57507,
    "c": 0.12537,
    "h": 155
  },
  "luminance": 0.20485
}

Semantic roles & 50–950 ramp

primary

#288E57

secondary

#B75B8D

accent

#489ADF

background

#F7FAF8

surface

#EDF5EF

border

#C8CFCA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288E57

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

Preview Lab → · Contrast checker → · Palette generator →