#288B3F#288B3F

#288B3F is a mid, vivid green. Relative luminance 0.193; OKLCH L 56.3% C 0.144 H 147.5°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#288B3F
RGB	rgb(40, 139, 63)
HSL	hsl(134, 55%, 35%)
HSV	hsv(134, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 54.7%, 45.5%)
CIE-LAB	lab(51.01, -45.13, 32.32)
CIE-LCH	lch(51.01, 55.51, 144.39°)
OKLab	oklab(56.25% -0.1216 0.0776)
OKLCH	oklch(56.25% 0.144 147.5)
XYZ	xyz(11.0041, 19.2740, 7.8420)
Luminance	0.1928 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B3F #8B2874

analogous

#438B28 #288B3F #288B70

triadic

#288B3F #3F288B #8B3F28

tetradic

#288B3F #28438B #8B2874 #8B7028

square

#288B3F #28438B #8B2874 #8B7028

split-complementary

#288B3F #70288B #8B2843

monochromatic

#0D2C14 #1A5B29 #288B3F #36BB55 #5DD078

Accessibility & contrast

On white

4.33

#288B3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#288B3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B3F

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B3F	#FFFFFF	#000000	##000000
##288B3F	1.00	4.33	4.86	4.86
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7E38

Deuteranopia (green-blind)

#817645

Tritanopia (blue-blind)

#00887A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #288b3f;
/* rgb */ color: rgb(40, 139, 63);
/* oklch */ color: oklch(56.3% 0.144 147.5);

Tailwind

colors: {
  custom: {
    50: '#70ae76',
    500: '#288b3f',
    950: '#000000',
  },
}

SCSS

$custom: #288b3f;
$custom-light: #70ae76;
$custom-dark: #000000;

JSON

{
  "hex": "#288b3f",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 63
  },
  "hsl": {
    "h": 133.939,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56251,
    "c": 0.14428,
    "h": 147.5
  },
  "luminance": 0.19275
}

Semantic roles & 50–950 ramp

primary

#288B3F

secondary

#B659A0

accent

#49BCDF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081008

muted

#7B7F7B

Preview Lab

Preview with #288B3F

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

Preview Lab → · Contrast checker → · Palette generator →