#A8311F#A8311F

#A8311F is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.158 H 31.5°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#A8311F
RGB	rgb(168, 49, 31)
HSL	hsl(8, 69%, 39%)
HSV	hsv(8, 82%, 66%)
CMYK	cmyk(0%, 70.8%, 81.5%, 34.1%)
CIE-LAB	lab(38.94, 47.62, 38.45)
CIE-LCH	lch(38.94, 61.21, 38.91°)
OKLab	oklab(49.18% 0.1349 0.0827)
OKLCH	oklch(49.18% 0.158 31.5)
XYZ	xyz(17.4961, 10.6231, 2.4253)
Luminance	0.1062 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A8311F #1F96A8

analogous

#A81F52 #A8311F #A8761F

triadic

#A8311F #1FA831 #311FA8

tetradic

#A8311F #52A81F #1F96A8 #761FA8

square

#A8311F #52A81F #1F96A8 #761FA8

split-complementary

#A8311F #1FA876 #1F52A8

monochromatic

#41130C #742215 #A8311F #D8432C #E27160

Accessibility & contrast

On white

6.72

#A8311F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A8311F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A8311F

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A8311F	#FFFFFF	#000000	##FFFFFF
##A8311F	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B1C

Deuteranopia (green-blind)

#726519

Tritanopia (blue-blind)

#B9002E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a8311f;
/* rgb */ color: rgb(168, 49, 31);
/* oklch */ color: oklch(49.2% 0.158 31.5);

Tailwind

colors: {
  custom: {
    50: '#cb715c',
    500: '#a8311f',
    950: '#000000',
  },
}

SCSS

$custom: #a8311f;
$custom-light: #cb715c;
$custom-dark: #000000;

JSON

{
  "hex": "#a8311f",
  "rgb": {
    "r": 168,
    "g": 49,
    "b": 31
  },
  "hsl": {
    "h": 7.883,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.49182,
    "c": 0.15826,
    "h": 31.5
  },
  "luminance": 0.1062
}

Semantic roles & 50–950 ramp

primary

#A8311F

secondary

#5DB8C6

accent

#D5EC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A8311F

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

Preview Lab → · Contrast checker → · Palette generator →