#901C1B#901C1B

#901C1B is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.7% C 0.152 H 26.9°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#901C1B
RGB	rgb(144, 28, 27)
HSL	hsl(1, 68%, 34%)
HSV	hsv(1, 81%, 56%)
CMYK	cmyk(0%, 80.6%, 81.3%, 43.5%)
CIE-LAB	lab(31.44, 47.15, 31.62)
CIE-LCH	lch(31.44, 56.77, 33.85°)
OKLab	oklab(42.72% 0.1354 0.0686)
OKLCH	oklch(42.72% 0.152 26.9)
XYZ	xyz(12.1162, 6.8409, 1.7192)
Luminance	0.0684 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901C1B #1B8F90

analogous

#901B54 #901C1B #90561B

triadic

#901C1B #1B901C #1C1B90

tetradic

#901C1B #54901B #1B8F90 #561B90

square

#901C1B #54901B #1B8F90 #561B90

split-complementary

#901C1B #1B9056 #1B5490

monochromatic

#290808 #5C1211 #901C1B #C42625 #DD4A49

Accessibility & contrast

On white

8.87

#901C1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#901C1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901C1B

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901C1B	#FFFFFF	#000000	##FFFFFF
##901C1B	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A19

Deuteranopia (green-blind)

#5D5316

Tritanopia (blue-blind)

#9F001E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901c1b;
/* rgb */ color: rgb(144, 28, 27);
/* oklch */ color: oklch(42.7% 0.152 26.9);

Tailwind

colors: {
  custom: {
    50: '#b96458',
    500: '#901c1b',
    950: '#000000',
  },
}

SCSS

$custom: #901c1b;
$custom-light: #b96458;
$custom-dark: #000000;

JSON

{
  "hex": "#901c1b",
  "rgb": {
    "r": 144,
    "g": 28,
    "b": 27
  },
  "hsl": {
    "h": 0.513,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42719,
    "c": 0.15174,
    "h": 26.9
  },
  "luminance": 0.06839
}

Semantic roles & 50–950 ramp

primary

#901C1B

secondary

#48BEBF

accent

#EAEB3D

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901C1B

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

Preview Lab → · Contrast checker → · Palette generator →