#971B21#971B21

#971B21 is a dark, vivid red. Relative luminance 0.075; OKLCH L 44.1% C 0.159 H 24.7°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#971B21
RGB	rgb(151, 27, 33)
HSL	hsl(357, 70%, 35%)
HSV	hsv(357, 82%, 59%)
CMYK	cmyk(0%, 82.1%, 78.1%, 40.8%)
CIE-LAB	lab(32.86, 49.80, 29.99)
CIE-LCH	lch(32.86, 58.14, 31.05°)
OKLab	oklab(44.06% 0.1442 0.0663)
OKLCH	oklch(44.06% 0.159 24.7)
XYZ	xyz(13.4306, 7.4751, 2.1742)
Luminance	0.0747 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#971B21 #1B9791

analogous

#971B5F #971B21 #97531B

triadic

#971B21 #21971B #1B2197

tetradic

#971B21 #5F971B #1B9791 #531B97

square

#971B21 #5F971B #1B9791 #531B97

split-complementary

#971B21 #1B9753 #1B5F97

monochromatic

#2F080A #631216 #971B21 #CB242C #DF4D54

Accessibility & contrast

On white

8.42

#971B21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#971B21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #971B21

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##971B21	#FFFFFF	#000000	##FFFFFF
##971B21	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433C20

Deuteranopia (green-blind)

#61571C

Tritanopia (blue-blind)

#A7001F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #971b21;
/* rgb */ color: rgb(151, 27, 33);
/* oklch */ color: oklch(44.1% 0.159 24.7);

Tailwind

colors: {
  custom: {
    50: '#be655c',
    500: '#971b21',
    950: '#000000',
  },
}

SCSS

$custom: #971b21;
$custom-light: #be655c;
$custom-dark: #000000;

JSON

{
  "hex": "#971b21",
  "rgb": {
    "r": 151,
    "g": 27,
    "b": 33
  },
  "hsl": {
    "h": 357.097,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.44056,
    "c": 0.15871,
    "h": 24.7
  },
  "luminance": 0.07473
}

Semantic roles & 50–950 ramp

primary

#971B21

secondary

#4CC1BC

accent

#ECE43B

background

#FCF6F5

surface

#F9EBE9

border

#D2C6C5

text

#140604

muted

#827A79

Preview Lab

Preview with #971B21

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

Preview Lab → · Contrast checker → · Palette generator →