#28520B#28520B

#28520B is a dark, moderate yellow-green. Relative luminance 0.065; OKLCH L 39.3% C 0.108 H 136.0°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#28520B
RGB	rgb(40, 82, 11)
HSL	hsl(95, 76%, 18%)
HSV	hsv(95, 87%, 32%)
CMYK	cmyk(51.2%, 0%, 86.6%, 67.8%)
CIE-LAB	lab(30.66, -27.91, 34.00)
CIE-LCH	lch(30.66, 43.98, 129.38°)
OKLab	oklab(39.3% -0.0778 0.0753)
OKLCH	oklch(39.3% 0.108 136)
XYZ	xyz(3.9527, 6.5096, 1.3647)
Luminance	0.0651 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28520B #350B52

analogous

#4B520B #28520B #0B5211

triadic

#28520B #0B2852 #520B28

tetradic

#28520B #0B4B52 #350B52 #52110B

square

#28520B #0B4B52 #350B52 #52110B

split-complementary

#28520B #110B52 #520B4B

monochromatic

#0D1B04 #0E1C04 #28520B #428812 #5DBE19

Accessibility & contrast

On white

9.12

#28520B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#28520B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28520B

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28520B	#FFFFFF	#000000	##FFFFFF
##28520B	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554A00

Deuteranopia (green-blind)

#504713

Tritanopia (blue-blind)

#264F45

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28520b;
/* rgb */ color: rgb(40, 82, 11);
/* oklch */ color: oklch(39.3% 0.108 136.0);

Tailwind

colors: {
  custom: {
    50: '#678351',
    500: '#28520b',
    950: '#000000',
  },
}

SCSS

$custom: #28520b;
$custom-light: #678351;
$custom-dark: #000000;

JSON

{
  "hex": "#28520b",
  "rgb": {
    "r": 40,
    "g": 82,
    "b": 11
  },
  "hsl": {
    "h": 95.493,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.39299,
    "c": 0.10828,
    "h": 136
  },
  "luminance": 0.0651
}

Semantic roles & 50–950 ramp

primary

#28520B

secondary

#652B8E

accent

#35F3A5

background

#F6F8F4

surface

#EBEFE7

border

#C6CAC3

text

#060A02

muted

#7A7C78

Preview Lab

Preview with #28520B

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

Preview Lab → · Contrast checker → · Palette generator →