#A8311C#A8311C

#A8311C is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.159 H 32.4°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A8311C
RGB	rgb(168, 49, 28)
HSL	hsl(9, 71%, 38%)
HSV	hsv(9, 83%, 66%)
CMYK	cmyk(0%, 70.8%, 83.3%, 34.1%)
CIE-LAB	lab(38.91, 47.53, 39.98)
CIE-LCH	lch(38.91, 62.11, 40.07°)
OKLab	oklab(49.16% 0.1341 0.085)
OKLCH	oklch(49.16% 0.159 32.4)
XYZ	xyz(17.4584, 10.6080, 2.2267)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A8311C #1C93A8

analogous

#A81C4D #A8311C #A8771C

triadic

#A8311C #1CA831 #311CA8

tetradic

#A8311C #4DA81C #1C93A8 #771CA8

square

#A8311C #4DA81C #1C93A8 #771CA8

split-complementary

#A8311C #1CA877 #1C4DA8

monochromatic

#3F120B #742213 #A8311C #DB4126 #E46F5B

Accessibility & contrast

On white

6.73

#A8311C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A8311C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A8311C

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A8311C	#FFFFFF	#000000	##FFFFFF
##A8311C	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B18

Deuteranopia (green-blind)

#726516

Tritanopia (blue-blind)

#B9002D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a8311c;
/* rgb */ color: rgb(168, 49, 28);
/* oklch */ color: oklch(49.2% 0.159 32.4);

Tailwind

colors: {
  custom: {
    50: '#cb715a',
    500: '#a8311c',
    950: '#000000',
  },
}

SCSS

$custom: #a8311c;
$custom-light: #cb715a;
$custom-dark: #000000;

JSON

{
  "hex": "#a8311c",
  "rgb": {
    "r": 168,
    "g": 49,
    "b": 28
  },
  "hsl": {
    "h": 9,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.49155,
    "c": 0.15876,
    "h": 32.4
  },
  "luminance": 0.10605
}

Semantic roles & 50–950 ramp

primary

#A8311C

secondary

#58B7C7

accent

#D3EE3A

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A8311C

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

Preview Lab → · Contrast checker → · Palette generator →