#911B1D#911B1D

#911B1D is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.153 H 25.9°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#911B1D
RGB	rgb(145, 27, 29)
HSL	hsl(359, 69%, 34%)
HSV	hsv(359, 81%, 57%)
CMYK	cmyk(0%, 81.4%, 80%, 43.1%)
CIE-LAB	lab(31.57, 47.83, 30.63)
CIE-LCH	lch(31.57, 56.80, 32.64°)
OKLab	oklab(42.86% 0.1378 0.067)
OKLCH	oklch(42.86% 0.153 25.9)
XYZ	xyz(12.2923, 6.8943, 1.8457)
Luminance	0.0689 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#911B1D #1B918F

analogous

#911B58 #911B1D #91541B

triadic

#911B1D #1D911B #1B1D91

tetradic

#911B1D #58911B #1B918F #541B91

square

#911B1D #58911B #1B918F #541B91

split-complementary

#911B1D #1B9154 #1B5891

monochromatic

#2A0808 #5D1113 #911B1D #C52527 #DD494C

Accessibility & contrast

On white

8.83

#911B1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#911B1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #911B1D

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##911B1D	#FFFFFF	#000000	##FFFFFF
##911B1D	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A1C

Deuteranopia (green-blind)

#5D5318

Tritanopia (blue-blind)

#A0001E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #911b1d;
/* rgb */ color: rgb(145, 27, 29);
/* oklch */ color: oklch(42.9% 0.153 25.9);

Tailwind

colors: {
  custom: {
    50: '#ba6459',
    500: '#911b1d',
    950: '#000000',
  },
}

SCSS

$custom: #911b1d;
$custom-light: #ba6459;
$custom-dark: #000000;

JSON

{
  "hex": "#911b1d",
  "rgb": {
    "r": 145,
    "g": 27,
    "b": 29
  },
  "hsl": {
    "h": 358.983,
    "s": 68.605,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42855,
    "c": 0.15324,
    "h": 25.9
  },
  "luminance": 0.06892
}

Semantic roles & 50–950 ramp

primary

#911B1D

secondary

#49BFBD

accent

#EBE83C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #911B1D

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

Preview Lab → · Contrast checker → · Palette generator →