#A71F1F#A71F1F

#A71F1F is a mid, vivid red. Relative luminance 0.093; OKLCH L 47.4% C 0.172 H 26.8°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#A71F1F
RGB	rgb(167, 31, 31)
HSL	hsl(0, 69%, 39%)
HSV	hsv(0, 81%, 65%)
CMYK	cmyk(0%, 81.4%, 81.4%, 34.5%)
CIE-LAB	lab(36.55, 53.40, 36.03)
CIE-LCH	lch(36.55, 64.42, 34.01°)
OKLab	oklab(47.37% 0.1531 0.0775)
OKLCH	oklch(47.37% 0.172 26.8)
XYZ	xyz(16.6757, 9.2971, 2.2126)
Luminance	0.0929 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A71F1F #1FA7A7

analogous

#A71F63 #A71F1F #A7631F

triadic

#A71F1F #1FA71F #1F1FA7

tetradic

#A71F1F #63A71F #1FA7A7 #631FA7

square

#A71F1F #63A71F #1FA7A7 #631FA7

split-complementary

#A71F1F #1FA763 #1F63A7

monochromatic

#400C0C #731515 #A71F1F #D82B2B #E15F5F

Accessibility & contrast

On white

7.35

#A71F1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#A71F1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A71F1F

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A71F1F	#FFFFFF	#000000	##FFFFFF
##A71F1F	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B431D

Deuteranopia (green-blind)

#6C6018

Tritanopia (blue-blind)

#B80021

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a71f1f;
/* rgb */ color: rgb(167, 31, 31);
/* oklch */ color: oklch(47.4% 0.172 26.8);

Tailwind

colors: {
  custom: {
    50: '#cb695c',
    500: '#a71f1f',
    950: '#000000',
  },
}

SCSS

$custom: #a71f1f;
$custom-light: #cb695c;
$custom-dark: #000000;

JSON

{
  "hex": "#a71f1f",
  "rgb": {
    "r": 167,
    "g": 31,
    "b": 31
  },
  "hsl": {
    "h": 0,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47366,
    "c": 0.17161,
    "h": 26.8
  },
  "luminance": 0.09294
}

Semantic roles & 50–950 ramp

primary

#A71F1F

secondary

#5CC6C6

accent

#ECEC3C

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A71F1F

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

Preview Lab → · Contrast checker → · Palette generator →