#288B2B#288B2B

#288B2B is a mid, vivid green. Relative luminance 0.191; OKLCH L 56.0% C 0.161 H 143.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#288B2B
RGB	rgb(40, 139, 43)
HSL	hsl(122, 55%, 35%)
HSV	hsv(122, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 69.1%, 45.5%)
CIE-LAB	lab(50.79, -47.66, 41.61)
CIE-LCH	lch(50.79, 63.27, 138.87°)
OKLab	oklab(56.01% -0.1292 0.0958)
OKLCH	oklch(56.01% 0.161 143.4)
XYZ	xyz(10.5431, 19.0896, 5.4141)
Luminance	0.1909 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B2B #8B2888

analogous

#578B28 #288B2B #288B5C

triadic

#288B2B #2B288B #8B2B28

tetradic

#288B2B #28578B #8B2888 #8B5C28

square

#288B2B #28578B #8B2888 #8B5C28

split-complementary

#288B2B #5C288B #8B2857

monochromatic

#0D2C0E #1A5B1C #288B2B #36BB3A #5DD061

Accessibility & contrast

On white

4.36

#288B2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#288B2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B2B

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B2B	#FFFFFF	#000000	##000000
##288B2B	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7E1E

Deuteranopia (green-blind)

#827634

Tritanopia (blue-blind)

#088777

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #288b2b;
/* rgb */ color: rgb(40, 139, 43);
/* oklch */ color: oklch(56.0% 0.161 143.4);

Tailwind

colors: {
  custom: {
    50: '#71ae69',
    500: '#288b2b',
    950: '#000000',
  },
}

SCSS

$custom: #288b2b;
$custom-light: #71ae69;
$custom-dark: #000000;

JSON

{
  "hex": "#288b2b",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 43
  },
  "hsl": {
    "h": 121.818,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56005,
    "c": 0.16089,
    "h": 143.4
  },
  "luminance": 0.19091
}

Semantic roles & 50–950 ramp

primary

#288B2B

secondary

#B659B3

accent

#49DADF

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#091007

muted

#7B7F7A

Preview Lab

Preview with #288B2B

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

Preview Lab → · Contrast checker → · Palette generator →