#A33720#A33720

#A33720 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.147 H 33.7°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#A33720
RGB	rgb(163, 55, 32)
HSL	hsl(11, 67%, 38%)
HSV	hsv(11, 80%, 64%)
CMYK	cmyk(0%, 66.3%, 80.4%, 36.1%)
CIE-LAB	lab(38.94, 43.41, 37.61)
CIE-LCH	lch(38.94, 57.44, 40.91°)
OKLab	oklab(49.02% 0.1225 0.0817)
OKLCH	oklch(49.02% 0.147 33.7)
XYZ	xyz(16.7330, 10.6256, 2.5361)
Luminance	0.1062 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33720 #208CA3

analogous

#A3204B #A33720 #A37820

triadic

#A33720 #20A337 #3720A3

tetradic

#A33720 #4BA320 #208CA3 #7820A3

square

#A33720 #4BA320 #208CA3 #7820A3

split-complementary

#A33720 #20A378 #204BA3

monochromatic

#3D140C #702616 #A33720 #D5492B #DF755E

Accessibility & contrast

On white

6.72

#A33720 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A33720 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33720

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33720	#FFFFFF	#000000	##FFFFFF
##A33720	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D1C

Deuteranopia (green-blind)

#71651C

Tritanopia (blue-blind)

#B41833

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a33720;
/* rgb */ color: rgb(163, 55, 32);
/* oklch */ color: oklch(49.0% 0.147 33.7);

Tailwind

colors: {
  custom: {
    50: '#c6735d',
    500: '#a33720',
    950: '#000000',
  },
}

SCSS

$custom: #a33720;
$custom-light: #c6735d;
$custom-dark: #000000;

JSON

{
  "hex": "#a33720",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 10.534,
    "s": 67.179,
    "l": 38.235
  },
  "oklch": {
    "l": 0.49017,
    "c": 0.14725,
    "h": 33.7
  },
  "luminance": 0.10623
}

Semantic roles & 50–950 ramp

primary

#A33720

secondary

#5BB1C4

accent

#CCEA3E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A33720

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

Preview Lab → · Contrast checker → · Palette generator →