#288B56#288B56

#288B56 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.7% C 0.122 H 155.3°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#288B56
RGB	rgb(40, 139, 86)
HSL	hsl(148, 55%, 35%)
HSV	hsv(148, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 38.1%, 45.5%)
CIE-LAB	lab(51.37, -41.04, 20.36)
CIE-LCH	lch(51.37, 45.81, 153.61°)
OKLab	oklab(56.67% -0.111 0.051)
OKLCH	oklch(56.67% 0.122 155.3)
XYZ	xyz(11.7863, 19.5869, 11.9618)
Luminance	0.1959 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B56 #8B285D

analogous

#2B8B28 #288B56 #288B87

triadic

#288B56 #56288B #8B5628

tetradic

#288B56 #282B8B #8B285D #8B8728

square

#288B56 #282B8B #8B285D #8B8728

split-complementary

#288B56 #87288B #8B282B

monochromatic

#0D2C1B #1A5B39 #288B56 #36BB73 #5DD093

Accessibility & contrast

On white

4.27

#288B56 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#288B56 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B56

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B56	#FFFFFF	#000000	##000000
##288B56	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A8052

Deuteranopia (green-blind)

#7E7759

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b56;
/* rgb */ color: rgb(40, 139, 86);
/* oklch */ color: oklch(56.7% 0.122 155.3);

Tailwind

colors: {
  custom: {
    50: '#70ae86',
    500: '#288b56',
    950: '#000000',
  },
}

SCSS

$custom: #288b56;
$custom-light: #70ae86;
$custom-dark: #000000;

JSON

{
  "hex": "#288b56",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 86
  },
  "hsl": {
    "h": 147.879,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56667,
    "c": 0.12213,
    "h": 155.3
  },
  "luminance": 0.19588
}

Semantic roles & 50–950 ramp

primary

#288B56

secondary

#B6598B

accent

#4999DF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288B56

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

Preview Lab → · Contrast checker → · Palette generator →