#901831#901831

#901831 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.8% C 0.153 H 16.0°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#901831
RGB	rgb(144, 24, 49)
HSL	hsl(348, 71%, 33%)
HSV	hsv(348, 83%, 56%)
CMYK	cmyk(0%, 83.3%, 66%, 43.5%)
CIE-LAB	lab(31.36, 49.34, 17.66)
CIE-LCH	lch(31.36, 52.40, 19.70°)
OKLab	oklab(42.77% 0.1474 0.0424)
OKLCH	oklch(42.77% 0.153 16)
XYZ	xyz(12.3840, 6.8062, 3.5668)
Luminance	0.0680 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901831 #189077

analogous

#90186D #901831 #903B18

triadic

#901831 #319018 #183190

tetradic

#901831 #6D9018 #189077 #3B1890

square

#901831 #6D9018 #189077 #3B1890

split-complementary

#901831 #18903B #186D90

monochromatic

#27070D #5C0F1F #901831 #C42143 #E04363

Accessibility & contrast

On white

8.90

#901831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901831

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901831	#FFFFFF	#000000	##FFFFFF
##901831	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3A31

Deuteranopia (green-blind)

#5A532E

Tritanopia (blue-blind)

#9E0023

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901831;
/* rgb */ color: rgb(144, 24, 49);
/* oklch */ color: oklch(42.8% 0.153 16.0);

Tailwind

colors: {
  custom: {
    50: '#b86368',
    500: '#901831',
    950: '#000000',
  },
}

SCSS

$custom: #901831;
$custom-light: #b86368;
$custom-dark: #000000;

JSON

{
  "hex": "#901831",
  "rgb": {
    "r": 144,
    "g": 24,
    "b": 49
  },
  "hsl": {
    "h": 347.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42766,
    "c": 0.15336,
    "h": 16
  },
  "luminance": 0.06804
}

Semantic roles & 50–950 ramp

primary

#901831

secondary

#43C0A6

accent

#EEC93A

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130606

muted

#827A7A

Preview Lab

Preview with #901831

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

Preview Lab → · Contrast checker → · Palette generator →