#A33028#A33028

#A33028 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.3% C 0.152 H 28.2°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#A33028
RGB	rgb(163, 48, 40)
HSL	hsl(4, 61%, 40%)
HSV	hsv(4, 75%, 64%)
CMYK	cmyk(0%, 70.6%, 75.5%, 36.1%)
CIE-LAB	lab(37.94, 46.67, 32.09)
CIE-LCH	lch(37.94, 56.64, 34.51°)
OKLab	oklab(48.29% 0.1343 0.0719)
OKLCH	oklch(48.29% 0.152 28.2)
XYZ	xyz(16.5461, 10.0561, 3.0769)
Luminance	0.1005 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33028 #289BA3

analogous

#A3285E #A33028 #A36D28

triadic

#A33028 #28A330 #3028A3

tetradic

#A33028 #5EA328 #289BA3 #6D28A3

square

#A33028 #5EA328 #289BA3 #6D28A3

split-complementary

#A33028 #28A36D #285EA3

monochromatic

#411310 #72221C #A33028 #CF433A #DB726B

Accessibility & contrast

On white

6.97

#A33028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#A33028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33028

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33028	#FFFFFF	#000000	##FFFFFF
##A33028	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514926

Deuteranopia (green-blind)

#6E6324

Tritanopia (blue-blind)

#B4062F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a33028;
/* rgb */ color: rgb(163, 48, 40);
/* oklch */ color: oklch(48.3% 0.152 28.2);

Tailwind

colors: {
  custom: {
    50: '#c67062',
    500: '#a33028',
    950: '#000000',
  },
}

SCSS

$custom: #a33028;
$custom-light: #c67062;
$custom-dark: #000000;

JSON

{
  "hex": "#a33028",
  "rgb": {
    "r": 163,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.902,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.48294,
    "c": 0.15237,
    "h": 28.2
  },
  "luminance": 0.10054
}

Semantic roles & 50–950 ramp

primary

#A33028

secondary

#66BBC1

accent

#D9E444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140805

muted

#837B79

Preview Lab

Preview with #A33028

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

Preview Lab → · Contrast checker → · Palette generator →