#A0183A#A0183A

#A0183A is a mid, vivid red. Relative luminance 0.084; OKLCH L 46.0% C 0.169 H 14.2°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#A0183A
RGB	rgb(160, 24, 58)
HSL	hsl(345, 74%, 36%)
HSV	hsv(345, 85%, 63%)
CMYK	cmyk(0%, 85%, 63.8%, 37.3%)
CIE-LAB	lab(34.87, 54.42, 17.01)
CIE-LCH	lch(34.87, 57.01, 17.36°)
OKLab	oklab(46% 0.1634 0.0413)
OKLCH	oklch(46% 0.169 14.2)
XYZ	xyz(15.5893, 8.4348, 4.8094)
Luminance	0.0843 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0183A #18A07E

analogous

#A0187E #A0183A #A03A18

triadic

#A0183A #3AA018 #183AA0

tetradic

#A0183A #7EA018 #18A07E #3A18A0

square

#A0183A #7EA018 #18A07E #3A18A0

split-complementary

#A0183A #18A03A #187EA0

monochromatic

#360813 #6B1027 #A0183A #D5204D #E44E74

Accessibility & contrast

On white

7.82

#A0183A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A0183A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0183A

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0183A	#FFFFFF	#000000	##FFFFFF
##A0183A	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42403A

Deuteranopia (green-blind)

#645C36

Tritanopia (blue-blind)

#B00028

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a0183a;
/* rgb */ color: rgb(160, 24, 58);
/* oklch */ color: oklch(46.0% 0.169 14.2);

Tailwind

colors: {
  custom: {
    50: '#c4666f',
    500: '#a0183a',
    950: '#000000',
  },
}

SCSS

$custom: #a0183a;
$custom-light: #c4666f;
$custom-dark: #000000;

JSON

{
  "hex": "#a0183a",
  "rgb": {
    "r": 160,
    "g": 24,
    "b": 58
  },
  "hsl": {
    "h": 345,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.46,
    "c": 0.16851,
    "h": 14.2
  },
  "luminance": 0.08432
}

Semantic roles & 50–950 ramp

primary

#A0183A

secondary

#4DC6A8

accent

#F1C237

background

#FDF6F6

surface

#FAEBEC

border

#D3C6C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A0183A

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

Preview Lab → · Contrast checker → · Palette generator →