#A6381D#A6381D

#A6381D is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.150 H 34.8°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#A6381D
RGB	rgb(166, 56, 29)
HSL	hsl(12, 70%, 38%)
HSV	hsv(12, 83%, 65%)
CMYK	cmyk(0%, 66.3%, 82.5%, 34.9%)
CIE-LAB	lab(39.63, 43.94, 40.02)
CIE-LCH	lch(39.63, 59.43, 42.32°)
OKLab	oklab(49.62% 0.1233 0.0857)
OKLCH	oklch(49.62% 0.15 34.8)
XYZ	xyz(17.3638, 11.0266, 2.3762)
Luminance	0.1102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6381D #1D8BA6

analogous

#A61D46 #A6381D #A67C1D

triadic

#A6381D #1DA638 #381DA6

tetradic

#A6381D #46A61D #1D8BA6 #7C1DA6

square

#A6381D #46A61D #1D8BA6 #7C1DA6

split-complementary

#A6381D #1DA67C #1D46A6

monochromatic

#3E150B #722614 #A6381D #D94A27 #E2765B

Accessibility & contrast

On white

6.55

#A6381D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A6381D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6381D

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6381D	#FFFFFF	#000000	##FFFFFF
##A6381D	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E19

Deuteranopia (green-blind)

#736618

Tritanopia (blue-blind)

#B71733

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a6381d;
/* rgb */ color: rgb(166, 56, 29);
/* oklch */ color: oklch(49.6% 0.150 34.8);

Tailwind

colors: {
  custom: {
    50: '#c9745b',
    500: '#a6381d',
    950: '#000000',
  },
}

SCSS

$custom: #a6381d;
$custom-light: #c9745b;
$custom-dark: #000000;

JSON

{
  "hex": "#a6381d",
  "rgb": {
    "r": 166,
    "g": 56,
    "b": 29
  },
  "hsl": {
    "h": 11.825,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.49624,
    "c": 0.15017,
    "h": 34.8
  },
  "luminance": 0.11024
}

Semantic roles & 50–950 ramp

primary

#A6381D

secondary

#59B1C6

accent

#CAED3B

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A6381D

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

Preview Lab → · Contrast checker → · Palette generator →