#28240B#28240B

#28240B is a dark, muted yellow. Relative luminance 0.017; OKLCH L 25.8% C 0.040 H 100.3°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#28240B
RGB	rgb(40, 36, 11)
HSL	hsl(52, 57%, 10%)
HSV	hsv(52, 73%, 16%)
CMYK	cmyk(0%, 10%, 72.5%, 84.3%)
CIE-LAB	lab(14.04, -2.25, 16.07)
CIE-LCH	lch(14.04, 16.23, 97.98°)
OKLab	oklab(25.82% -0.0072 0.0397)
OKLCH	oklch(25.82% 0.04 100.3)
XYZ	xyz(1.5664, 1.7371, 0.5693)
Luminance	0.0174 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28240B #0B0F28

analogous

#28150B #28240B #1E280B

triadic

#28240B #0B2824 #240B28

tetradic

#28240B #0B2815 #0B0F28 #280B1E

square

#28240B #0B2815 #0B0F28 #280B1E

split-complementary

#28240B #0B1E28 #150B28

monochromatic

#181607 #181607 #28240B #584F18 #887A25

Accessibility & contrast

On white

15.59

#28240B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#28240B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28240B

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28240B	#FFFFFF	#000000	##FFFFFF
##28240B	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282309

Deuteranopia (green-blind)

#29240C

Tritanopia (blue-blind)

#2C211E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #28240b;
/* rgb */ color: rgb(40, 36, 11);
/* oklch */ color: oklch(25.8% 0.040 100.3);

Tailwind

colors: {
  custom: {
    50: '#635e4c',
    500: '#28240b',
    950: '#000000',
  },
}

SCSS

$custom: #28240b;
$custom-light: #635e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#28240b",
  "rgb": {
    "r": 40,
    "g": 36,
    "b": 11
  },
  "hsl": {
    "h": 51.724,
    "s": 56.863,
    "l": 10
  },
  "oklch": {
    "l": 0.25821,
    "c": 0.04031,
    "h": 100.3
  },
  "luminance": 0.01737
}

Semantic roles & 50–950 ramp

primary

#28240B

secondary

#2B3364

accent

#5DE048

background

#F5F5F4

surface

#EAE9E7

border

#C6C5C3

text

#050401

muted

#797977

Preview Lab

Preview with #28240B

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

Preview Lab → · Contrast checker → · Palette generator →