#A7381B#A7381B

#A7381B is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.8% C 0.152 H 35.3°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#A7381B
RGB	rgb(167, 56, 27)
HSL	hsl(12, 72%, 38%)
HSV	hsv(12, 84%, 65%)
CMYK	cmyk(0%, 66.5%, 83.8%, 34.5%)
CIE-LAB	lab(39.79, 44.24, 41.23)
CIE-LCH	lch(39.79, 60.47, 42.98°)
OKLab	oklab(49.78% 0.1238 0.0875)
OKLCH	oklch(49.78% 0.152 35.3)
XYZ	xyz(17.5504, 11.1256, 2.2600)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7381B #1B8AA7

analogous

#A71B44 #A7381B #A77E1B

triadic

#A7381B #1BA738 #381BA7

tetradic

#A7381B #44A71B #1B8AA7 #7E1BA7

square

#A7381B #44A71B #1B8AA7 #7E1BA7

split-complementary

#A7381B #1BA77E #1B44A7

monochromatic

#3E150A #722612 #A7381B #DC4A24 #E47558

Accessibility & contrast

On white

6.51

#A7381B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#A7381B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7381B

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7381B	#FFFFFF	#000000	##FFFFFF
##A7381B	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)

#584E16

Deuteranopia (green-blind)

#746715

Tritanopia (blue-blind)

#B81633

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a7381b;
/* rgb */ color: rgb(167, 56, 27);
/* oklch */ color: oklch(49.8% 0.152 35.3);

Tailwind

colors: {
  custom: {
    50: '#ca745a',
    500: '#a7381b',
    950: '#000000',
  },
}

SCSS

$custom: #a7381b;
$custom-light: #ca745a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7381b",
  "rgb": {
    "r": 167,
    "g": 56,
    "b": 27
  },
  "hsl": {
    "h": 12.429,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.49777,
    "c": 0.15163,
    "h": 35.3
  },
  "luminance": 0.11123
}

Semantic roles & 50–950 ramp

primary

#A7381B

secondary

#56B0C8

accent

#C9EF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A7381B

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

Preview Lab → · Contrast checker → · Palette generator →