#A33A28#A33A28

#A33A28 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.5% C 0.143 H 32.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#A33A28
RGB	rgb(163, 58, 40)
HSL	hsl(9, 61%, 40%)
HSV	hsv(9, 75%, 64%)
CMYK	cmyk(0%, 64.4%, 75.5%, 36.1%)
CIE-LAB	lab(39.53, 42.38, 33.83)
CIE-LCH	lch(39.53, 54.23, 38.60°)
OKLab	oklab(49.48% 0.1209 0.0757)
OKLCH	oklch(49.48% 0.143 32)
XYZ	xyz(17.0021, 10.9683, 3.2289)
Luminance	0.1097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33A28 #2891A3

analogous

#A32854 #A33A28 #A37728

triadic

#A33A28 #28A33A #3A28A3

tetradic

#A33A28 #54A328 #2891A3 #7728A3

square

#A33A28 #54A328 #2891A3 #7728A3

split-complementary

#A33A28 #28A377 #2854A3

monochromatic

#411710 #72291C #A33A28 #CF4F3A #DB7B6B

Accessibility & contrast

On white

6.58

#A33A28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A33A28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A28

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33A28	#FFFFFF	#000000	##FFFFFF
##A33A28	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F25

Deuteranopia (green-blind)

#716624

Tritanopia (blue-blind)

#B31F36

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33a28;
/* rgb */ color: rgb(163, 58, 40);
/* oklch */ color: oklch(49.5% 0.143 32.0);

Tailwind

colors: {
  custom: {
    50: '#c67563',
    500: '#a33a28',
    950: '#000000',
  },
}

SCSS

$custom: #a33a28;
$custom-light: #c67563;
$custom-dark: #000000;

JSON

{
  "hex": "#a33a28",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 40
  },
  "hsl": {
    "h": 8.78,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49483,
    "c": 0.14266,
    "h": 32
  },
  "luminance": 0.10966
}

Semantic roles & 50–950 ramp

primary

#A33A28

secondary

#66B4C1

accent

#CCE444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A33A28

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

Preview Lab → · Contrast checker → · Palette generator →