#288B4E#288B4E

#288B4E is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.5% C 0.130 H 152.1°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#288B4E
RGB	rgb(40, 139, 78)
HSL	hsl(143, 55%, 35%)
HSV	hsv(143, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 43.9%, 45.5%)
CIE-LAB	lab(51.23, -42.60, 24.61)
CIE-LCH	lch(51.23, 49.20, 149.99°)
OKLab	oklab(56.51% -0.1148 0.0608)
OKLCH	oklch(56.51% 0.13 152.1)
XYZ	xyz(11.4819, 19.4651, 10.3583)
Luminance	0.1947 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B4E #8B2865

analogous

#348B28 #288B4E #288B7F

triadic

#288B4E #4E288B #8B4E28

tetradic

#288B4E #28348B #8B2865 #8B7F28

square

#288B4E #28348B #8B2865 #8B7F28

split-complementary

#288B4E #7F288B #8B2834

monochromatic

#0D2C19 #1A5B33 #288B4E #36BB69 #5DD089

Accessibility & contrast

On white

4.29

#288B4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#288B4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B4E

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B4E	#FFFFFF	#000000	##000000
##288B4E	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F4A

Deuteranopia (green-blind)

#7F7752

Tritanopia (blue-blind)

#00897C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b4e;
/* rgb */ color: rgb(40, 139, 78);
/* oklch */ color: oklch(56.5% 0.130 152.1);

Tailwind

colors: {
  custom: {
    50: '#70ae80',
    500: '#288b4e',
    950: '#000000',
  },
}

SCSS

$custom: #288b4e;
$custom-light: #70ae80;
$custom-dark: #000000;

JSON

{
  "hex": "#288b4e",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 78
  },
  "hsl": {
    "h": 143.03,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56506,
    "c": 0.12994,
    "h": 152.1
  },
  "luminance": 0.19466
}

Semantic roles & 50–950 ramp

primary

#288B4E

secondary

#B65992

accent

#49A5DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #288B4E

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

Preview Lab → · Contrast checker → · Palette generator →