#288B54#288B54

#288B54 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.6% C 0.124 H 154.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#288B54
RGB	rgb(40, 139, 84)
HSL	hsl(147, 55%, 35%)
HSV	hsv(147, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 39.6%, 45.5%)
CIE-LAB	lab(51.33, -41.44, 21.43)
CIE-LCH	lch(51.33, 46.66, 152.66°)
OKLab	oklab(56.63% -0.1119 0.0535)
OKLCH	oklch(56.63% 0.124 154.5)
XYZ	xyz(11.7069, 19.5551, 11.5433)
Luminance	0.1956 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B54 #8B285F

analogous

#2D8B28 #288B54 #288B86

triadic

#288B54 #54288B #8B5428

tetradic

#288B54 #282D8B #8B285F #8B8628

square

#288B54 #282D8B #8B285F #8B8628

split-complementary

#288B54 #86288B #8B282D

monochromatic

#0D2C1B #1A5B37 #288B54 #36BB71 #5DD090

Accessibility & contrast

On white

4.28

#288B54 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#288B54 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B54

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B54	#FFFFFF	#000000	##000000
##288B54	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)

#8B8050

Deuteranopia (green-blind)

#7E7758

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b54;
/* rgb */ color: rgb(40, 139, 84);
/* oklch */ color: oklch(56.6% 0.124 154.5);

Tailwind

colors: {
  custom: {
    50: '#70ae84',
    500: '#288b54',
    950: '#000000',
  },
}

SCSS

$custom: #288b54;
$custom-light: #70ae84;
$custom-dark: #000000;

JSON

{
  "hex": "#288b54",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 84
  },
  "hsl": {
    "h": 146.667,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56625,
    "c": 0.12408,
    "h": 154.5
  },
  "luminance": 0.19556
}

Semantic roles & 50–950 ramp

primary

#288B54

secondary

#B6598D

accent

#499CDF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288B54

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

Preview Lab → · Contrast checker → · Palette generator →