#A7301B#A7301B

#A7301B is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.9% C 0.159 H 32.4°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A7301B
RGB	rgb(167, 48, 27)
HSL	hsl(9, 72%, 38%)
HSV	hsv(9, 84%, 65%)
CMYK	cmyk(0%, 71.3%, 83.8%, 34.5%)
CIE-LAB	lab(38.57, 47.56, 40.11)
CIE-LCH	lch(38.57, 62.21, 40.14°)
OKLab	oklab(48.86% 0.1341 0.085)
OKLCH	oklch(48.86% 0.159 32.4)
XYZ	xyz(17.1932, 10.4112, 2.1410)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7301B #1B92A7

analogous

#A71B4C #A7301B #A7761B

triadic

#A7301B #1BA730 #301BA7

tetradic

#A7301B #4CA71B #1B92A7 #761BA7

square

#A7301B #4CA71B #1B92A7 #761BA7

split-complementary

#A7301B #1BA776 #1B4CA7

monochromatic

#3E120A #722112 #A7301B #DC3F24 #E46D58

Accessibility & contrast

On white

6.81

#A7301B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A7301B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7301B

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7301B	#FFFFFF	#000000	##FFFFFF
##A7301B	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A17

Deuteranopia (green-blind)

#716415

Tritanopia (blue-blind)

#B8002C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a7301b;
/* rgb */ color: rgb(167, 48, 27);
/* oklch */ color: oklch(48.9% 0.159 32.4);

Tailwind

colors: {
  custom: {
    50: '#ca705a',
    500: '#a7301b',
    950: '#000000',
  },
}

SCSS

$custom: #a7301b;
$custom-light: #ca705a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7301b",
  "rgb": {
    "r": 167,
    "g": 48,
    "b": 27
  },
  "hsl": {
    "h": 9,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.48861,
    "c": 0.15876,
    "h": 32.4
  },
  "luminance": 0.10409
}

Semantic roles & 50–950 ramp

primary

#A7301B

secondary

#56B7C8

accent

#D4EF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A7301B

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

Preview Lab → · Contrast checker → · Palette generator →