#A0311C#A0311C

#A0311C is a mid, vivid red. Relative luminance 0.098; OKLCH L 47.7% C 0.150 H 32.8°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#A0311C
RGB	rgb(160, 49, 28)
HSL	hsl(10, 70%, 37%)
HSV	hsv(10, 83%, 63%)
CMYK	cmyk(0%, 69.4%, 82.5%, 37.3%)
CIE-LAB	lab(37.40, 44.78, 38.02)
CIE-LCH	lch(37.40, 58.75, 40.33°)
OKLab	oklab(47.75% 0.1264 0.0815)
OKLCH	oklch(47.75% 0.15 32.8)
XYZ	xyz(15.8070, 9.7564, 2.1492)
Luminance	0.0975 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0311C #1C8BA0

analogous

#A01C49 #A0311C #A0731C

triadic

#A0311C #1CA031 #311CA0

tetradic

#A0311C #49A01C #1C8BA0 #731CA0

square

#A0311C #49A01C #1C8BA0 #731CA0

split-complementary

#A0311C #1CA073 #1C49A0

monochromatic

#38110A #6C2113 #A0311C #D44125 #E16B55

Accessibility & contrast

On white

7.12

#A0311C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#A0311C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0311C

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0311C	#FFFFFF	#000000	##FFFFFF
##A0311C	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524818

Deuteranopia (green-blind)

#6D6117

Tritanopia (blue-blind)

#B1092D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a0311c;
/* rgb */ color: rgb(160, 49, 28);
/* oklch */ color: oklch(47.7% 0.150 32.8);

Tailwind

colors: {
  custom: {
    50: '#c5705a',
    500: '#a0311c',
    950: '#000000',
  },
}

SCSS

$custom: #a0311c;
$custom-light: #c5705a;
$custom-dark: #000000;

JSON

{
  "hex": "#a0311c",
  "rgb": {
    "r": 160,
    "g": 49,
    "b": 28
  },
  "hsl": {
    "h": 9.545,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.47745,
    "c": 0.15035,
    "h": 32.8
  },
  "luminance": 0.09754
}

Semantic roles & 50–950 ramp

primary

#A0311C

secondary

#53B2C4

accent

#D1ED3B

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A0311C

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

Preview Lab → · Contrast checker → · Palette generator →