#971B1B#971B1B

#971B1B is a dark, vivid red. Relative luminance 0.074; OKLCH L 44.0% C 0.159 H 26.8°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#971B1B
RGB	rgb(151, 27, 27)
HSL	hsl(0, 70%, 35%)
HSV	hsv(0, 82%, 59%)
CMYK	cmyk(0%, 82.1%, 82.1%, 40.8%)
CIE-LAB	lab(32.80, 49.60, 33.47)
CIE-LCH	lch(32.80, 59.83, 34.01°)
OKLab	oklab(43.99% 0.1422 0.072)
OKLCH	oklch(43.99% 0.159 26.8)
XYZ	xyz(13.3539, 7.4445, 1.7705)
Luminance	0.0744 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#971B1B #1B9797

analogous

#971B59 #971B1B #97591B

triadic

#971B1B #1B971B #1B1B97

tetradic

#971B1B #59971B #1B9797 #591B97

square

#971B1B #59971B #1B9797 #591B97

split-complementary

#971B1B #1B9759 #1B5997

monochromatic

#2F0808 #631212 #971B1B #CB2424 #DF4D4D

Accessibility & contrast

On white

8.44

#971B1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#971B1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #971B1B

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##971B1B	#FFFFFF	#000000	##FFFFFF
##971B1B	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433C19

Deuteranopia (green-blind)

#615715

Tritanopia (blue-blind)

#A7001D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #971b1b;
/* rgb */ color: rgb(151, 27, 27);
/* oklch */ color: oklch(44.0% 0.159 26.8);

Tailwind

colors: {
  custom: {
    50: '#bf6558',
    500: '#971b1b',
    950: '#000000',
  },
}

SCSS

$custom: #971b1b;
$custom-light: #bf6558;
$custom-dark: #000000;

JSON

{
  "hex": "#971b1b",
  "rgb": {
    "r": 151,
    "g": 27,
    "b": 27
  },
  "hsl": {
    "h": 0,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43985,
    "c": 0.15938,
    "h": 26.8
  },
  "luminance": 0.07442
}

Semantic roles & 50–950 ramp

primary

#971B1B

secondary

#4CC1C1

accent

#ECEC3B

background

#FCF6F5

surface

#F9EBE9

border

#D2C6C5

text

#140603

muted

#827A78

Preview Lab

Preview with #971B1B

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

Preview Lab → · Contrast checker → · Palette generator →