#A72B21#A72B21

#A72B21 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.4% C 0.162 H 29.1°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#A72B21
RGB	rgb(167, 43, 33)
HSL	hsl(4, 67%, 39%)
HSV	hsv(4, 80%, 65%)
CMYK	cmyk(0%, 74.3%, 80.2%, 34.5%)
CIE-LAB	lab(37.94, 49.63, 36.31)
CIE-LCH	lch(37.94, 61.49, 36.19°)
OKLab	oklab(48.41% 0.1417 0.0788)
OKLCH	oklch(48.41% 0.162 29.1)
XYZ	xyz(17.0768, 10.0557, 2.4803)
Luminance	0.1005 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A72B21 #219DA7

analogous

#A7215A #A72B21 #A76E21

triadic

#A72B21 #21A72B #2B21A7

tetradic

#A72B21 #5AA721 #219DA7 #6E21A7

square

#A72B21 #5AA721 #219DA7 #6E21A7

split-complementary

#A72B21 #21A76E #215AA7

monochromatic

#41110D #741E17 #A72B21 #D63C2F #E06C62

Accessibility & contrast

On white

6.98

#A72B21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#A72B21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A72B21

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A72B21	#FFFFFF	#000000	##FFFFFF
##A72B21	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50481E

Deuteranopia (green-blind)

#6F631B

Tritanopia (blue-blind)

#B8002A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a72b21;
/* rgb */ color: rgb(167, 43, 33);
/* oklch */ color: oklch(48.4% 0.162 29.1);

Tailwind

colors: {
  custom: {
    50: '#ca6e5d',
    500: '#a72b21',
    950: '#000000',
  },
}

SCSS

$custom: #a72b21;
$custom-light: #ca6e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#a72b21",
  "rgb": {
    "r": 167,
    "g": 43,
    "b": 33
  },
  "hsl": {
    "h": 4.478,
    "s": 67,
    "l": 39.216
  },
  "oklch": {
    "l": 0.48409,
    "c": 0.16211,
    "h": 29.1
  },
  "luminance": 0.10053
}

Semantic roles & 50–950 ramp

primary

#A72B21

secondary

#5FBDC5

accent

#DDEA3E

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A72B21

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

Preview Lab → · Contrast checker → · Palette generator →