#901833#901833

#901833 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.8% C 0.153 H 15.0°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#901833
RGB	rgb(144, 24, 51)
HSL	hsl(347, 71%, 33%)
HSV	hsv(347, 83%, 56%)
CMYK	cmyk(0%, 83.3%, 64.6%, 43.5%)
CIE-LAB	lab(31.40, 49.46, 16.40)
CIE-LCH	lch(31.40, 52.11, 18.35°)
OKLab	oklab(42.81% 0.1482 0.0397)
OKLCH	oklch(42.81% 0.153 15)
XYZ	xyz(12.4271, 6.8235, 3.7940)
Luminance	0.0682 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901833 #189075

analogous

#90186F #901833 #903918

triadic

#901833 #339018 #183390

tetradic

#901833 #6F9018 #189075 #391890

square

#901833 #6F9018 #189075 #391890

split-complementary

#901833 #189039 #186F90

monochromatic

#27070E #5C0F20 #901833 #C42146 #E04366

Accessibility & contrast

On white

8.88

#901833 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901833 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901833

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901833	#FFFFFF	#000000	##FFFFFF
##901833	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3A33

Deuteranopia (green-blind)

#5A5330

Tritanopia (blue-blind)

#9E0024

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901833;
/* rgb */ color: rgb(144, 24, 51);
/* oklch */ color: oklch(42.8% 0.153 15.0);

Tailwind

colors: {
  custom: {
    50: '#b8636a',
    500: '#901833',
    950: '#000000',
  },
}

SCSS

$custom: #901833;
$custom-light: #b8636a;
$custom-dark: #000000;

JSON

{
  "hex": "#901833",
  "rgb": {
    "r": 144,
    "g": 24,
    "b": 51
  },
  "hsl": {
    "h": 346.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42808,
    "c": 0.15342,
    "h": 15
  },
  "luminance": 0.06822
}

Semantic roles & 50–950 ramp

primary

#901833

secondary

#43C0A4

accent

#EEC63A

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130606

muted

#827A7A

Preview Lab

Preview with #901833

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

Preview Lab → · Contrast checker → · Palette generator →