#A71F2B#A71F2B

#A71F2B is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.5% C 0.170 H 22.7°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#A71F2B
RGB	rgb(167, 31, 43)
HSL	hsl(355, 69%, 39%)
HSV	hsv(355, 81%, 65%)
CMYK	cmyk(0%, 81.4%, 74.3%, 34.5%)
CIE-LAB	lab(36.69, 53.84, 29.09)
CIE-LCH	lch(36.69, 61.20, 28.38°)
OKLab	oklab(47.52% 0.1572 0.0658)
OKLCH	oklch(47.52% 0.17 22.7)
XYZ	xyz(16.8644, 9.3726, 3.2061)
Luminance	0.0937 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A71F2B #1FA79B

analogous

#A71F6F #A71F2B #A7571F

triadic

#A71F2B #2BA71F #1F2BA7

tetradic

#A71F2B #6FA71F #1FA79B #571FA7

square

#A71F2B #6FA71F #1FA79B #571FA7

split-complementary

#A71F2B #1FA757 #1F6FA7

monochromatic

#400C10 #73151E #A71F2B #D82B3B #E15F6B

Accessibility & contrast

On white

7.31

#A71F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#A71F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A71F2B

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A71F2B	#FFFFFF	#000000	##FFFFFF
##A71F2B	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A442A

Deuteranopia (green-blind)

#6B6126

Tritanopia (blue-blind)

#B80025

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a71f2b;
/* rgb */ color: rgb(167, 31, 43);
/* oklch */ color: oklch(47.5% 0.170 22.7);

Tailwind

colors: {
  custom: {
    50: '#ca6964',
    500: '#a71f2b',
    950: '#000000',
  },
}

SCSS

$custom: #a71f2b;
$custom-light: #ca6964;
$custom-dark: #000000;

JSON

{
  "hex": "#a71f2b",
  "rgb": {
    "r": 167,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 354.706,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47517,
    "c": 0.17039,
    "h": 22.7
  },
  "luminance": 0.0937
}

Semantic roles & 50–950 ramp

primary

#A71F2B

secondary

#5CC6BC

accent

#ECDC3C

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150705

muted

#837A7A

Preview Lab

Preview with #A71F2B

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

Preview Lab → · Contrast checker → · Palette generator →