#A01718#A01718

#A01718 is a mid, vivid red. Relative luminance 0.082; OKLCH L 45.4% C 0.171 H 27.2°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#A01718
RGB	rgb(160, 23, 24)
HSL	hsl(360, 75%, 36%)
HSV	hsv(360, 86%, 63%)
CMYK	cmyk(0%, 85.6%, 85%, 37.3%)
CIE-LAB	lab(34.30, 53.20, 37.24)
CIE-LCH	lch(34.30, 64.94, 34.99°)
OKLab	oklab(45.42% 0.1519 0.0781)
OKLCH	oklch(45.42% 0.171 27.2)
XYZ	xyz(14.9704, 8.1548, 1.6498)
Luminance	0.0815 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01718 #17A09F

analogous

#A0175C #A01718 #A05A17

triadic

#A01718 #18A017 #1718A0

tetradic

#A01718 #5CA017 #17A09F #5A17A0

square

#A01718 #5CA017 #17A09F #5A17A0

split-complementary

#A01718 #17A05A #175CA0

monochromatic

#350808 #6A0F10 #A01718 #D61F20 #E54C4D

Accessibility & contrast

On white

7.98

#A01718 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#A01718 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01718

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01718	#FFFFFF	#000000	##FFFFFF
##A01718	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463E16

Deuteranopia (green-blind)

#675B10

Tritanopia (blue-blind)

#B1001A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01718;
/* rgb */ color: rgb(160, 23, 24);
/* oklch */ color: oklch(45.4% 0.171 27.2);

Tailwind

colors: {
  custom: {
    50: '#c66556',
    500: '#a01718',
    950: '#000000',
  },
}

SCSS

$custom: #a01718;
$custom-light: #c66556;
$custom-dark: #000000;

JSON

{
  "hex": "#a01718",
  "rgb": {
    "r": 160,
    "g": 23,
    "b": 24
  },
  "hsl": {
    "h": 359.562,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.45424,
    "c": 0.1708,
    "h": 27.2
  },
  "luminance": 0.08152
}

Semantic roles & 50–950 ramp

primary

#A01718

secondary

#4CC7C6

accent

#F1F036

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150603

muted

#837A78

Preview Lab

Preview with #A01718

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

Preview Lab → · Contrast checker → · Palette generator →