#901C1F#901C1F

#901C1F is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.8% C 0.151 H 25.4°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#901C1F
RGB	rgb(144, 28, 31)
HSL	hsl(358, 67%, 34%)
HSV	hsv(358, 81%, 56%)
CMYK	cmyk(0%, 80.6%, 78.5%, 43.5%)
CIE-LAB	lab(31.49, 47.29, 29.28)
CIE-LCH	lch(31.49, 55.63, 31.77°)
OKLab	oklab(42.77% 0.1367 0.0648)
OKLCH	oklch(42.77% 0.151 25.4)
XYZ	xyz(12.1656, 6.8607, 1.9797)
Luminance	0.0686 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901C1F #1C908D

analogous

#901C59 #901C1F #90531C

triadic

#901C1F #1F901C #1C1F90

tetradic

#901C1F #59901C #1C908D #531C90

square

#901C1F #59901C #1C908D #531C90

split-complementary

#901C1F #1C9053 #1C5990

monochromatic

#2A0809 #5D1214 #901C1F #C3262A #DC4A4E

Accessibility & contrast

On white

8.85

#901C1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#901C1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901C1F

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901C1F	#FFFFFF	#000000	##FFFFFF
##901C1F	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403A1E

Deuteranopia (green-blind)

#5D531A

Tritanopia (blue-blind)

#9F001F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901c1f;
/* rgb */ color: rgb(144, 28, 31);
/* oklch */ color: oklch(42.8% 0.151 25.4);

Tailwind

colors: {
  custom: {
    50: '#b9645b',
    500: '#901c1f',
    950: '#000000',
  },
}

SCSS

$custom: #901c1f;
$custom-light: #b9645b;
$custom-dark: #000000;

JSON

{
  "hex": "#901c1f",
  "rgb": {
    "r": 144,
    "g": 28,
    "b": 31
  },
  "hsl": {
    "h": 358.448,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42768,
    "c": 0.15125,
    "h": 25.4
  },
  "luminance": 0.06859
}

Semantic roles & 50–950 ramp

primary

#901C1F

secondary

#4ABEBB

accent

#EAE63D

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901C1F

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

Preview Lab → · Contrast checker → · Palette generator →