#901B2F#901B2F

#901B2F is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.151 H 17.7°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#901B2F
RGB	rgb(144, 27, 47)
HSL	hsl(350, 68%, 34%)
HSV	hsv(350, 81%, 56%)
CMYK	cmyk(0%, 81.3%, 67.4%, 43.5%)
CIE-LAB	lab(31.62, 48.36, 19.31)
CIE-LCH	lch(31.62, 52.08, 21.76°)
OKLab	oklab(42.95% 0.1438 0.0459)
OKLCH	oklch(42.95% 0.151 17.7)
XYZ	xyz(12.4080, 6.9203, 3.3712)
Luminance	0.0692 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B2F #1B907C

analogous

#901B69 #901B2F #90421B

triadic

#901B2F #2F901B #1B2F90

tetradic

#901B2F #69901B #1B907C #421B90

square

#901B2F #69901B #1B907C #421B90

split-complementary

#901B2F #1B9042 #1B6990

monochromatic

#29080D #5C111E #901B2F #C42540 #DD4962

Accessibility & contrast

On white

8.81

#901B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#901B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B2F

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B2F	#FFFFFF	#000000	##FFFFFF
##901B2F	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3B2F

Deuteranopia (green-blind)

#5B532C

Tritanopia (blue-blind)

#9E0024

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b2f;
/* rgb */ color: rgb(144, 27, 47);
/* oklch */ color: oklch(42.9% 0.151 17.7);

Tailwind

colors: {
  custom: {
    50: '#b86467',
    500: '#901b2f',
    950: '#000000',
  },
}

SCSS

$custom: #901b2f;
$custom-light: #b86467;
$custom-dark: #000000;

JSON

{
  "hex": "#901b2f",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 349.744,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42948,
    "c": 0.15096,
    "h": 17.7
  },
  "luminance": 0.06918
}

Semantic roles & 50–950 ramp

primary

#901B2F

secondary

#48BFAA

accent

#EBCD3D

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130606

muted

#827A7A

Preview Lab

Preview with #901B2F

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

Preview Lab → · Contrast checker → · Palette generator →