#A6391C#A6391C

#A6391C is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.7% C 0.149 H 35.5°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#A6391C
RGB	rgb(166, 57, 28)
HSL	hsl(13, 71%, 38%)
HSV	hsv(13, 83%, 65%)
CMYK	cmyk(0%, 65.7%, 83.1%, 34.9%)
CIE-LAB	lab(39.78, 43.47, 40.66)
CIE-LCH	lch(39.78, 59.52, 43.09°)
OKLab	oklab(49.74% 0.1217 0.0867)
OKLCH	oklch(49.74% 0.149 35.5)
XYZ	xyz(17.4006, 11.1196, 2.3284)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6391C #1C89A6

analogous

#A61C44 #A6391C #A67E1C

triadic

#A6391C #1CA639 #391CA6

tetradic

#A6391C #44A61C #1C89A6 #7E1CA6

square

#A6391C #44A61C #1C89A6 #7E1CA6

split-complementary

#A6391C #1CA67E #1C44A6

monochromatic

#3D150A #722713 #A6391C #DA4B25 #E37659

Accessibility & contrast

On white

6.51

#A6391C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#A6391C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6391C

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6391C	#FFFFFF	#000000	##FFFFFF
##A6391C	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594E17

Deuteranopia (green-blind)

#736717

Tritanopia (blue-blind)

#B71933

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a6391c;
/* rgb */ color: rgb(166, 57, 28);
/* oklch */ color: oklch(49.7% 0.149 35.5);

Tailwind

colors: {
  custom: {
    50: '#c9755b',
    500: '#a6391c',
    950: '#000000',
  },
}

SCSS

$custom: #a6391c;
$custom-light: #c9755b;
$custom-dark: #000000;

JSON

{
  "hex": "#a6391c",
  "rgb": {
    "r": 166,
    "g": 57,
    "b": 28
  },
  "hsl": {
    "h": 12.609,
    "s": 71.134,
    "l": 38.039
  },
  "oklch": {
    "l": 0.49739,
    "c": 0.14946,
    "h": 35.5
  },
  "luminance": 0.11117
}

Semantic roles & 50–950 ramp

primary

#A6391C

secondary

#57AFC7

accent

#C8EE3A

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A6391C

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

Preview Lab → · Contrast checker → · Palette generator →