#288A21#288A21

#288A21 is a mid, vivid green. Relative luminance 0.187; OKLCH L 55.6% C 0.166 H 142.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#288A21
RGB	rgb(40, 138, 33)
HSL	hsl(116, 61%, 34%)
HSV	hsv(116, 76%, 54%)
CMYK	cmyk(71%, 0%, 76.1%, 45.9%)
CIE-LAB	lab(50.38, -48.21, 45.22)
CIE-LCH	lch(50.38, 66.10, 136.84°)
OKLab	oklab(55.64% -0.1313 0.1021)
OKLCH	oklch(55.64% 0.166 142.1)
XYZ	xyz(10.2375, 18.7368, 4.5156)
Luminance	0.1874 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A21 #83218A

analogous

#5C8A21 #288A21 #218A4E

triadic

#288A21 #21288A #8A2128

tetradic

#288A21 #215C8A #83218A #8A4E21

square

#288A21 #215C8A #83218A #8A4E21

split-complementary

#288A21 #4E218A #8A215C

monochromatic

#0B2709 #1A5915 #288A21 #36BB2D #59D550

Accessibility & contrast

On white

4.42

#288A21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#288A21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A21

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A21	#FFFFFF	#000000	##000000
##288A21	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7D0C

Deuteranopia (green-blind)

#82752C

Tritanopia (blue-blind)

#0E8676

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #288a21;
/* rgb */ color: rgb(40, 138, 33);
/* oklch */ color: oklch(55.6% 0.166 142.1);

Tailwind

colors: {
  custom: {
    50: '#71ad64',
    500: '#288a21',
    950: '#000000',
  },
}

SCSS

$custom: #288a21;
$custom-light: #71ad64;
$custom-dark: #000000;

JSON

{
  "hex": "#288a21",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 33
  },
  "hsl": {
    "h": 116,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.55637,
    "c": 0.16628,
    "h": 142.1
  },
  "luminance": 0.18738
}

Semantic roles & 50–950 ramp

primary

#288A21

secondary

#B14EB9

accent

#43E5DA

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#091006

muted

#7B7F7A

Preview Lab

Preview with #288A21

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

Preview Lab → · Contrast checker → · Palette generator →