#28100C#28100C

#28100C is a very dark, muted red. Relative luminance 0.008; OKLCH L 20.9% C 0.041 H 30.7°. Best body text is #FFFFFF at 17.95:1 contrast (WCAG AA passes).

Color values

HEX	#28100C
RGB	rgb(40, 16, 12)
HSL	hsl(9, 54%, 10%)
HSV	hsv(9, 70%, 16%)
CMYK	cmyk(0%, 60%, 70%, 84.3%)
CIE-LAB	lab(7.66, 12.01, 6.75)
CIE-LCH	lch(7.66, 13.78, 29.32°)
OKLab	oklab(20.85% 0.0355 0.0211)
OKLCH	oklch(20.85% 0.041 30.7)
XYZ	xyz(1.1268, 0.8484, 0.4522)
Luminance	0.0085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28100C #0C2428

analogous

#280C16 #28100C #281E0C

triadic

#28100C #0C2810 #100C28

tetradic

#28100C #16280C #0C2428 #1E0C28

square

#28100C #16280C #0C2428 #1E0C28

split-complementary

#28100C #0C281E #0C1628

monochromatic

#180907 #180907 #28100C #57231A #863628

Accessibility & contrast

On white

17.95

#28100C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#28100C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28100C

17.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28100C	#FFFFFF	#000000	##FFFFFF
##28100C	1.00	17.95	1.17	17.95
#FFFFFF	17.95	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140C

Deuteranopia (green-blind)

#1C190C

Tritanopia (blue-blind)

#2C0C0F

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #28100c;
/* rgb */ color: rgb(40, 16, 12);
/* oklch */ color: oklch(20.9% 0.041 30.7);

Tailwind

colors: {
  custom: {
    50: '#634e4c',
    500: '#28100c',
    950: '#000000',
  },
}

SCSS

$custom: #28100c;
$custom-light: #634e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#28100c",
  "rgb": {
    "r": 40,
    "g": 16,
    "b": 12
  },
  "hsl": {
    "h": 8.571,
    "s": 53.846,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20852,
    "c": 0.04125,
    "h": 30.7
  },
  "luminance": 0.00848
}

Semantic roles & 50–950 ramp

primary

#28100C

secondary

#2D5B63

accent

#C8DD4B

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#050101

muted

#7A7777

Preview Lab

Preview with #28100C

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

Preview Lab → · Contrast checker → · Palette generator →