#28370B#28370B

#28370B is a dark, moderate yellow-green. Relative luminance 0.032; OKLCH L 31.3% C 0.069 H 126.4°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#28370B
RGB	rgb(40, 55, 11)
HSL	hsl(80, 67%, 13%)
HSV	hsv(80, 80%, 22%)
CMYK	cmyk(27.3%, 0%, 80%, 78.4%)
CIE-LAB	lab(20.86, -14.21, 24.31)
CIE-LCH	lch(20.86, 28.16, 120.30°)
OKLab	oklab(31.29% -0.0407 0.0552)
OKLCH	oklch(31.29% 0.069 126.4)
XYZ	xyz(2.3017, 3.2076, 0.8144)
Luminance	0.0321 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28370B #1A0B37

analogous

#37300B #28370B #12370B

triadic

#28370B #0B2837 #370B28

tetradic

#28370B #0B3730 #1A0B37 #370B12

square

#28370B #0B3730 #1A0B37 #370B12

split-complementary

#28370B #0B1237 #300B37

monochromatic

#131A05 #131A05 #28370B #4D6A15 #729D1F

Accessibility & contrast

On white

12.79

#28370B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#28370B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28370B

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28370B	#FFFFFF	#000000	##FFFFFF
##28370B	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3305

Deuteranopia (green-blind)

#38320F

Tritanopia (blue-blind)

#2A342E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #28370b;
/* rgb */ color: rgb(40, 55, 11);
/* oklch */ color: oklch(31.3% 0.069 126.4);

Tailwind

colors: {
  custom: {
    50: '#646d4d',
    500: '#28370b',
    950: '#000000',
  },
}

SCSS

$custom: #28370b;
$custom-light: #646d4d;
$custom-dark: #000000;

JSON

{
  "hex": "#28370b",
  "rgb": {
    "r": 40,
    "g": 55,
    "b": 11
  },
  "hsl": {
    "h": 80.455,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.3129,
    "c": 0.06862,
    "h": 126.4
  },
  "luminance": 0.03208
}

Semantic roles & 50–950 ramp

primary

#28370B

secondary

#432A74

accent

#3EEA79

background

#F6F6F4

surface

#EBEBE7

border

#C6C6C3

text

#050701

muted

#7A7A77

Preview Lab

Preview with #28370B

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

Preview Lab → · Contrast checker → · Palette generator →