#28401B#28401B

#28401B is a dark, moderate yellow-green. Relative luminance 0.042; OKLCH L 34.2% C 0.067 H 135.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#28401B
RGB	rgb(40, 64, 27)
HSL	hsl(99, 41%, 18%)
HSV	hsv(99, 58%, 25%)
CMYK	cmyk(37.5%, 0%, 57.8%, 74.9%)
CIE-LAB	lab(24.31, -17.41, 19.58)
CIE-LCH	lch(24.31, 26.20, 131.64°)
OKLab	oklab(34.16% -0.048 0.0469)
OKLCH	oklch(34.16% 0.067 135.7)
XYZ	xyz(2.9062, 4.1969, 1.6937)
Luminance	0.0420 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 7.08

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28401B #331B40

analogous

#3A401B #28401B #1B4020

triadic

#28401B #1B2840 #401B28

tetradic

#28401B #1B3A40 #331B40 #40201B

square

#28401B #1B3A40 #331B40 #40201B

split-complementary

#28401B #201B40 #401B3A

monochromatic

#0D1609 #0D1609 #28401B #436B2D #5E963F

Accessibility & contrast

On white

11.42

#28401B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#28401B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28401B

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28401B	#FFFFFF	#000000	##FFFFFF
##28401B	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423B18

Deuteranopia (green-blind)

#3F391D

Tritanopia (blue-blind)

#273E38

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #28401b;
/* rgb */ color: rgb(40, 64, 27);
/* oklch */ color: oklch(34.2% 0.067 135.7);

Tailwind

colors: {
  custom: {
    50: '#637558',
    500: '#28401b',
    950: '#000000',
  },
}

SCSS

$custom: #28401b;
$custom-light: #637558;
$custom-dark: #000000;

JSON

{
  "hex": "#28401b",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 98.919,
    "s": 40.659,
    "l": 17.843
  },
  "oklch": {
    "l": 0.34155,
    "c": 0.06708,
    "h": 135.7
  },
  "luminance": 0.04197
}

Semantic roles & 50–950 ramp

primary

#28401B

secondary

#634175

accent

#57D1A6

background

#F6F7F5

surface

#EBEDE9

border

#C6C8C5

text

#050803

muted

#7A7B78

Preview Lab

Preview with #28401B

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

Preview Lab → · Contrast checker → · Palette generator →