#A0171E#A0171E

#A0171E is a mid, vivid red. Relative luminance 0.082; OKLCH L 45.5% C 0.170 H 25.5°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#A0171E
RGB	rgb(160, 23, 30)
HSL	hsl(357, 75%, 36%)
HSV	hsv(357, 86%, 63%)
CMYK	cmyk(0%, 85.6%, 81.3%, 37.3%)
CIE-LAB	lab(34.36, 53.37, 33.92)
CIE-LCH	lch(34.36, 63.24, 32.44°)
OKLab	oklab(45.48% 0.1537 0.0732)
OKLCH	oklch(45.48% 0.17 25.5)
XYZ	xyz(15.0398, 8.1826, 2.0156)
Luminance	0.0818 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0171E #17A099

analogous

#A01762 #A0171E #A05417

triadic

#A0171E #1EA017 #171EA0

tetradic

#A0171E #62A017 #17A099 #5417A0

square

#A0171E #62A017 #17A099 #5417A0

split-complementary

#A0171E #17A054 #1762A0

monochromatic

#35080A #6A0F14 #A0171E #D61F28 #E54C54

Accessibility & contrast

On white

7.97

#A0171E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#A0171E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0171E

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0171E	#FFFFFF	#000000	##FFFFFF
##A0171E	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453E1C

Deuteranopia (green-blind)

#665B17

Tritanopia (blue-blind)

#B1001C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a0171e;
/* rgb */ color: rgb(160, 23, 30);
/* oklch */ color: oklch(45.5% 0.170 25.5);

Tailwind

colors: {
  custom: {
    50: '#c6655a',
    500: '#a0171e',
    950: '#000000',
  },
}

SCSS

$custom: #a0171e;
$custom-light: #c6655a;
$custom-dark: #000000;

JSON

{
  "hex": "#a0171e",
  "rgb": {
    "r": 160,
    "g": 23,
    "b": 30
  },
  "hsl": {
    "h": 356.934,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.45484,
    "c": 0.17019,
    "h": 25.5
  },
  "luminance": 0.0818
}

Semantic roles & 50–950 ramp

primary

#A0171E

secondary

#4CC7C1

accent

#F1E836

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150604

muted

#837A79

Preview Lab

Preview with #A0171E

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

Preview Lab → · Contrast checker → · Palette generator →