#288B21#288B21

#288B21 is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.9% C 0.167 H 142.1°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#288B21
RGB	rgb(40, 139, 33)
HSL	hsl(116, 62%, 34%)
HSV	hsv(116, 76%, 55%)
CMYK	cmyk(71.2%, 0%, 76.3%, 45.5%)
CIE-LAB	lab(50.72, -48.56, 45.56)
CIE-LCH	lch(50.72, 66.59, 136.83°)
OKLab	oklab(55.92% -0.1322 0.1028)
OKLCH	oklch(55.92% 0.167 142.1)
XYZ	xyz(10.3816, 19.0250, 4.5636)
Luminance	0.1903 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B21 #84218B

analogous

#5D8B21 #288B21 #218B4F

triadic

#288B21 #21288B #8B2128

tetradic

#288B21 #215D8B #84218B #8B4F21

square

#288B21 #215D8B #84218B #8B4F21

split-complementary

#288B21 #4F218B #8B215D

monochromatic

#0C280A #1A5A15 #288B21 #36BC2D #5AD651

Accessibility & contrast

On white

4.37

#288B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#288B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B21

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B21	#FFFFFF	#000000	##000000
##288B21	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7E0B

Deuteranopia (green-blind)

#83762C

Tritanopia (blue-blind)

#0D8777

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #288b21;
/* rgb */ color: rgb(40, 139, 33);
/* oklch */ color: oklch(55.9% 0.167 142.1);

Tailwind

colors: {
  custom: {
    50: '#72ae64',
    500: '#288b21',
    950: '#000000',
  },
}

SCSS

$custom: #288b21;
$custom-light: #72ae64;
$custom-dark: #000000;

JSON

{
  "hex": "#288b21",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 33
  },
  "hsl": {
    "h": 116.038,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.55918,
    "c": 0.16745,
    "h": 142.1
  },
  "luminance": 0.19026
}

Semantic roles & 50–950 ramp

primary

#288B21

secondary

#B24FB9

accent

#43E5DA

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#091006

muted

#7B7F7A

Preview Lab

Preview with #288B21

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

Preview Lab → · Contrast checker → · Palette generator →