#A6311E#A6311E

#A6311E is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.8% C 0.156 H 31.9°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#A6311E
RGB	rgb(166, 49, 30)
HSL	hsl(8, 69%, 38%)
HSV	hsv(8, 82%, 65%)
CMYK	cmyk(0%, 70.5%, 81.9%, 34.9%)
CIE-LAB	lab(38.55, 46.91, 38.47)
CIE-LCH	lch(38.55, 60.67, 39.35°)
OKLab	oklab(48.82% 0.1327 0.0826)
OKLCH	oklch(48.82% 0.156 31.9)
XYZ	xyz(17.0605, 10.4000, 2.3371)
Luminance	0.1040 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6311E #1E93A6

analogous

#A61E4F #A6311E #A6751E

triadic

#A6311E #1EA631 #311EA6

tetradic

#A6311E #4FA61E #1E93A6 #751EA6

square

#A6311E #4FA61E #1E93A6 #751EA6

split-complementary

#A6311E #1EA675 #1E4FA6

monochromatic

#3E120B #722215 #A6311E #D84129 #E26F5D

Accessibility & contrast

On white

6.82

#A6311E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A6311E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6311E

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6311E	#FFFFFF	#000000	##FFFFFF
##A6311E	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A1B

Deuteranopia (green-blind)

#706418

Tritanopia (blue-blind)

#B7022E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a6311e;
/* rgb */ color: rgb(166, 49, 30);
/* oklch */ color: oklch(48.8% 0.156 31.9);

Tailwind

colors: {
  custom: {
    50: '#c9715c',
    500: '#a6311e',
    950: '#000000',
  },
}

SCSS

$custom: #a6311e;
$custom-light: #c9715c;
$custom-dark: #000000;

JSON

{
  "hex": "#a6311e",
  "rgb": {
    "r": 166,
    "g": 49,
    "b": 30
  },
  "hsl": {
    "h": 8.382,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.4882,
    "c": 0.15634,
    "h": 31.9
  },
  "luminance": 0.10397
}

Semantic roles & 50–950 ramp

primary

#A6311E

secondary

#5AB7C6

accent

#D4EC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A6311E

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

Preview Lab → · Contrast checker → · Palette generator →