#A7391B#A7391B

#A7391B is a mid, vivid red. Relative luminance 0.112; OKLCH L 49.9% C 0.151 H 35.7°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#A7391B
RGB	rgb(167, 57, 27)
HSL	hsl(13, 72%, 38%)
HSV	hsv(13, 84%, 65%)
CMYK	cmyk(0%, 65.9%, 83.8%, 34.5%)
CIE-LAB	lab(39.95, 43.80, 41.38)
CIE-LCH	lch(39.95, 60.26, 43.37°)
OKLab	oklab(49.9% 0.1225 0.0879)
OKLCH	oklch(49.9% 0.151 35.7)
XYZ	xyz(17.5993, 11.2235, 2.2763)
Luminance	0.1122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7391B #1B89A7

analogous

#A71B43 #A7391B #A77F1B

triadic

#A7391B #1BA739 #391BA7

tetradic

#A7391B #43A71B #1B89A7 #7F1BA7

square

#A7391B #43A71B #1B89A7 #7F1BA7

split-complementary

#A7391B #1BA77F #1B43A7

monochromatic

#3E150A #722712 #A7391B #DC4B24 #E47658

Accessibility & contrast

On white

6.47

#A7391B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#A7391B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7391B

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7391B	#FFFFFF	#000000	##FFFFFF
##A7391B	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F16

Deuteranopia (green-blind)

#746716

Tritanopia (blue-blind)

#B81833

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a7391b;
/* rgb */ color: rgb(167, 57, 27);
/* oklch */ color: oklch(49.9% 0.151 35.7);

Tailwind

colors: {
  custom: {
    50: '#ca755a',
    500: '#a7391b',
    950: '#000000',
  },
}

SCSS

$custom: #a7391b;
$custom-light: #ca755a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7391b",
  "rgb": {
    "r": 167,
    "g": 57,
    "b": 27
  },
  "hsl": {
    "h": 12.857,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.499,
    "c": 0.15072,
    "h": 35.7
  },
  "luminance": 0.11221
}

Semantic roles & 50–950 ramp

primary

#A7391B

secondary

#56AFC8

accent

#C8EF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A7391B

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

Preview Lab → · Contrast checker → · Palette generator →