#901823#901823

#901823 is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.5% C 0.154 H 22.8°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#901823
RGB	rgb(144, 24, 35)
HSL	hsl(355, 71%, 33%)
HSV	hsv(355, 83%, 56%)
CMYK	cmyk(0%, 83.3%, 75.7%, 43.5%)
CIE-LAB	lab(31.13, 48.62, 26.41)
CIE-LCH	lch(31.13, 55.33, 28.51°)
OKLab	oklab(42.52% 0.1418 0.0596)
OKLCH	oklch(42.52% 0.154 22.8)
XYZ	xyz(12.1331, 6.7059, 2.2453)
Luminance	0.0670 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901823 #189085

analogous

#90185F #901823 #904918

triadic

#901823 #239018 #182390

tetradic

#901823 #5F9018 #189085 #491890

square

#901823 #5F9018 #189085 #491890

split-complementary

#901823 #189049 #185F90

monochromatic

#270709 #5C0F16 #901823 #C42130 #E04351

Accessibility & contrast

On white

8.97

#901823 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#901823 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901823

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901823	#FFFFFF	#000000	##FFFFFF
##901823	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3922

Deuteranopia (green-blind)

#5C521F

Tritanopia (blue-blind)

#9F001E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #901823;
/* rgb */ color: rgb(144, 24, 35);
/* oklch */ color: oklch(42.5% 0.154 22.8);

Tailwind

colors: {
  custom: {
    50: '#b9635e',
    500: '#901823',
    950: '#000000',
  },
}

SCSS

$custom: #901823;
$custom-light: #b9635e;
$custom-dark: #000000;

JSON

{
  "hex": "#901823",
  "rgb": {
    "r": 144,
    "g": 24,
    "b": 35
  },
  "hsl": {
    "h": 354.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42517,
    "c": 0.15382,
    "h": 22.8
  },
  "luminance": 0.06704
}

Semantic roles & 50–950 ramp

primary

#901823

secondary

#43C0B5

accent

#EEDE3A

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901823

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

Preview Lab → · Contrast checker → · Palette generator →