#A71F3B#A71F3B

#A71F3B is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.8% C 0.170 H 15.9°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A71F3B
RGB	rgb(167, 31, 59)
HSL	hsl(348, 69%, 39%)
HSV	hsv(348, 81%, 65%)
CMYK	cmyk(0%, 81.4%, 64.7%, 34.5%)
CIE-LAB	lab(36.96, 54.65, 19.37)
CIE-LCH	lch(36.96, 57.98, 19.51°)
OKLab	oklab(47.8% 0.1634 0.0466)
OKLCH	oklch(47.8% 0.17 15.9)
XYZ	xyz(17.2176, 9.5139, 5.0666)
Luminance	0.0951 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A71F3B #1FA78B

analogous

#A71F7F #A71F3B #A7471F

triadic

#A71F3B #3BA71F #1F3BA7

tetradic

#A71F3B #7FA71F #1FA78B #471FA7

square

#A71F3B #7FA71F #1FA78B #471FA7

split-complementary

#A71F3B #1FA747 #1F7FA7

monochromatic

#400C17 #731529 #A71F3B #D82B4F #E15F7A

Accessibility & contrast

On white

7.24

#A71F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A71F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A71F3B

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A71F3B	#FFFFFF	#000000	##FFFFFF
##A71F3B	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48453B

Deuteranopia (green-blind)

#6A6137

Tritanopia (blue-blind)

#B7002B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a71f3b;
/* rgb */ color: rgb(167, 31, 59);
/* oklch */ color: oklch(47.8% 0.170 15.9);

Tailwind

colors: {
  custom: {
    50: '#c96a70',
    500: '#a71f3b',
    950: '#000000',
  },
}

SCSS

$custom: #a71f3b;
$custom-light: #c96a70;
$custom-dark: #000000;

JSON

{
  "hex": "#a71f3b",
  "rgb": {
    "r": 167,
    "g": 31,
    "b": 59
  },
  "hsl": {
    "h": 347.647,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47796,
    "c": 0.16987,
    "h": 15.9
  },
  "luminance": 0.09511
}

Semantic roles & 50–950 ramp

primary

#A71F3B

secondary

#5CC6B0

accent

#ECC73C

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#150707

muted

#837A7A

Preview Lab

Preview with #A71F3B

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

Preview Lab → · Contrast checker → · Palette generator →