#901B35#901B35

#901B35 is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.1% C 0.151 H 14.5°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#901B35
RGB	rgb(144, 27, 53)
HSL	hsl(347, 68%, 34%)
HSV	hsv(347, 81%, 56%)
CMYK	cmyk(0%, 81.3%, 63.2%, 43.5%)
CIE-LAB	lab(31.74, 48.73, 15.54)
CIE-LCH	lch(31.74, 51.15, 17.68°)
OKLab	oklab(43.07% 0.1463 0.0379)
OKLCH	oklch(43.07% 0.151 14.5)
XYZ	xyz(12.5375, 6.9721, 4.0531)
Luminance	0.0697 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B35 #1B9076

analogous

#901B6F #901B35 #903B1B

triadic

#901B35 #35901B #1B3590

tetradic

#901B35 #6F901B #1B9076 #3B1B90

square

#901B35 #6F901B #1B9076 #3B1B90

split-complementary

#901B35 #1B903B #1B6F90

monochromatic

#29080F #5C1122 #901B35 #C42548 #DD496A

Accessibility & contrast

On white

8.77

#901B35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#901B35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B35

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B35	#FFFFFF	#000000	##FFFFFF
##901B35	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3B35

Deuteranopia (green-blind)

#5B5332

Tritanopia (blue-blind)

#9E0026

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901b35;
/* rgb */ color: rgb(144, 27, 53);
/* oklch */ color: oklch(43.1% 0.151 14.5);

Tailwind

colors: {
  custom: {
    50: '#b7646b',
    500: '#901b35',
    950: '#000000',
  },
}

SCSS

$custom: #901b35;
$custom-light: #b7646b;
$custom-dark: #000000;

JSON

{
  "hex": "#901b35",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 53
  },
  "hsl": {
    "h": 346.667,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.43074,
    "c": 0.1511,
    "h": 14.5
  },
  "luminance": 0.0697
}

Semantic roles & 50–950 ramp

primary

#901B35

secondary

#48BFA4

accent

#EBC43D

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130606

muted

#827A7A

Preview Lab

Preview with #901B35

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

Preview Lab → · Contrast checker → · Palette generator →