#28310B#28310B

#28310B is a dark, muted yellow-green. Relative luminance 0.027; OKLCH L 29.5% C 0.059 H 121.5°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#28310B
RGB	rgb(40, 49, 11)
HSL	hsl(74, 63%, 12%)
HSV	hsv(74, 78%, 19%)
CMYK	cmyk(18.4%, 0%, 77.6%, 80.8%)
CIE-LAB	lab(18.68, -10.67, 21.83)
CIE-LCH	lch(18.68, 24.30, 116.04°)
OKLab	oklab(29.53% -0.0309 0.0505)
OKLCH	oklch(29.53% 0.059 121.5)
XYZ	xyz(2.0338, 2.6719, 0.7251)
Luminance	0.0267 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28310B #140B31

analogous

#31270B #28310B #15310B

triadic

#28310B #0B2831 #310B28

tetradic

#28310B #0B3127 #140B31 #310B15

square

#28310B #0B3127 #140B31 #310B15

split-complementary

#28310B #0B1531 #270B31

monochromatic

#141906 #141906 #28310B #516316 #7A9521

Accessibility & contrast

On white

13.69

#28310B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#28310B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28310B

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28310B	#FFFFFF	#000000	##FFFFFF
##28310B	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342E06

Deuteranopia (green-blind)

#332D0E

Tritanopia (blue-blind)

#2B2E29

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28310b;
/* rgb */ color: rgb(40, 49, 11);
/* oklch */ color: oklch(29.5% 0.059 121.5);

Tailwind

colors: {
  custom: {
    50: '#63694c',
    500: '#28310b',
    950: '#000000',
  },
}

SCSS

$custom: #28310b;
$custom-light: #63694c;
$custom-dark: #000000;

JSON

{
  "hex": "#28310b",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 11
  },
  "hsl": {
    "h": 74.211,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.2953,
    "c": 0.05919,
    "h": 121.5
  },
  "luminance": 0.02672
}

Semantic roles & 50–950 ramp

primary

#28310B

secondary

#3A2A6E

accent

#41E668

background

#F6F6F4

surface

#EBEBE7

border

#C6C6C3

text

#050601

muted

#7A7A77

Preview Lab

Preview with #28310B

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

Preview Lab → · Contrast checker → · Palette generator →