#971C1B#971C1B

#971C1B is a dark, vivid red. Relative luminance 0.075; OKLCH L 44.1% C 0.159 H 27.1°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#971C1B
RGB	rgb(151, 28, 27)
HSL	hsl(0, 70%, 35%)
HSV	hsv(0, 82%, 59%)
CMYK	cmyk(0%, 81.5%, 82.1%, 40.8%)
CIE-LAB	lab(32.90, 49.31, 33.57)
CIE-LCH	lch(32.90, 59.65, 34.24°)
OKLab	oklab(44.06% 0.1413 0.0722)
OKLCH	oklch(44.06% 0.159 27.1)
XYZ	xyz(13.3772, 7.4911, 1.7783)
Luminance	0.0749 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#971C1B #1B9697

analogous

#971B58 #971C1B #975A1B

triadic

#971C1B #1B971C #1C1B97

tetradic

#971C1B #58971B #1B9697 #5A1B97

square

#971C1B #58971B #1B9697 #5A1B97

split-complementary

#971C1B #1B975A #1B5897

monochromatic

#2F0908 #631212 #971C1B #CB2624 #DF4E4D

Accessibility & contrast

On white

8.41

#971C1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#971C1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #971C1B

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##971C1B	#FFFFFF	#000000	##FFFFFF
##971C1B	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443C19

Deuteranopia (green-blind)

#625715

Tritanopia (blue-blind)

#A7001E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #971c1b;
/* rgb */ color: rgb(151, 28, 27);
/* oklch */ color: oklch(44.1% 0.159 27.1);

Tailwind

colors: {
  custom: {
    50: '#bf6558',
    500: '#971c1b',
    950: '#000000',
  },
}

SCSS

$custom: #971c1b;
$custom-light: #bf6558;
$custom-dark: #000000;

JSON

{
  "hex": "#971c1b",
  "rgb": {
    "r": 151,
    "g": 28,
    "b": 27
  },
  "hsl": {
    "h": 0.484,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.4406,
    "c": 0.15867,
    "h": 27.1
  },
  "luminance": 0.07489
}

Semantic roles & 50–950 ramp

primary

#971C1B

secondary

#4CC1C1

accent

#EBEC3B

background

#FCF6F5

surface

#F9EBE9

border

#D2C6C5

text

#140603

muted

#827A78

Preview Lab

Preview with #971C1B

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

Preview Lab → · Contrast checker → · Palette generator →