#28100F#28100F

#28100F is a very dark, muted red. Relative luminance 0.009; OKLCH L 20.9% C 0.040 H 23.6°. Best body text is #FFFFFF at 17.93:1 contrast (WCAG AA passes).

Color values

HEX	#28100F
RGB	rgb(40, 16, 15)
HSL	hsl(2, 45%, 11%)
HSV	hsv(2, 63%, 16%)
CMYK	cmyk(0%, 60%, 62.5%, 84.3%)
CIE-LAB	lab(7.73, 12.37, 5.37)
CIE-LCH	lch(7.73, 13.49, 23.48°)
OKLab	oklab(20.93% 0.037 0.0162)
OKLCH	oklch(20.93% 0.04 23.6)
XYZ	xyz(1.1467, 0.8563, 0.5567)
Luminance	0.0086 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28100F #0F2728

analogous

#280F1A #28100F #281C0F

triadic

#28100F #0F2810 #100F28

tetradic

#28100F #1A280F #0F2728 #1C0F28

square

#28100F #1A280F #0F2728 #1C0F28

split-complementary

#28100F #0F281C #0F1A28

monochromatic

#160908 #160908 #28100F #552220 #813430

Accessibility & contrast

On white

17.93

#28100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#28100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28100F

17.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28100F	#FFFFFF	#000000	##FFFFFF
##28100F	1.00	17.93	1.17	17.93
#FFFFFF	17.93	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140F

Deuteranopia (green-blind)

#1B190F

Tritanopia (blue-blind)

#2C0D10

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #28100f;
/* rgb */ color: rgb(40, 16, 15);
/* oklch */ color: oklch(20.9% 0.040 23.6);

Tailwind

colors: {
  custom: {
    50: '#634e4e',
    500: '#28100f',
    950: '#000000',
  },
}

SCSS

$custom: #28100f;
$custom-light: #634e4e;
$custom-dark: #000000;

JSON

{
  "hex": "#28100f",
  "rgb": {
    "r": 40,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 2.4,
    "s": 45.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.20932,
    "c": 0.04041,
    "h": 23.6
  },
  "luminance": 0.00856
}

Semantic roles & 50–950 ramp

primary

#28100F

secondary

#325F61

accent

#D0D553

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#050101

muted

#7A7777

Preview Lab

Preview with #28100F

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

Preview Lab → · Contrast checker → · Palette generator →