#A33828#A33828

#A33828 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.2% C 0.145 H 31.2°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#A33828
RGB	rgb(163, 56, 40)
HSL	hsl(8, 61%, 40%)
HSV	hsv(8, 75%, 64%)
CMYK	cmyk(0%, 65.6%, 75.5%, 36.1%)
CIE-LAB	lab(39.19, 43.28, 33.46)
CIE-LCH	lch(39.19, 54.71, 37.71°)
OKLab	oklab(49.23% 0.1237 0.0749)
OKLCH	oklch(49.23% 0.145 31.2)
XYZ	xyz(16.9033, 10.7705, 3.1959)
Luminance	0.1077 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33828 #2893A3

analogous

#A32855 #A33828 #A37628

triadic

#A33828 #28A338 #3828A3

tetradic

#A33828 #55A328 #2893A3 #7628A3

square

#A33828 #55A328 #2893A3 #7628A3

split-complementary

#A33828 #28A376 #2855A3

monochromatic

#411610 #72271C #A33828 #CF4D3A #DB796B

Accessibility & contrast

On white

6.66

#A33828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#A33828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33828

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33828	#FFFFFF	#000000	##FFFFFF
##A33828	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D26

Deuteranopia (green-blind)

#716524

Tritanopia (blue-blind)

#B31B35

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a33828;
/* rgb */ color: rgb(163, 56, 40);
/* oklch */ color: oklch(49.2% 0.145 31.2);

Tailwind

colors: {
  custom: {
    50: '#c67463',
    500: '#a33828',
    950: '#000000',
  },
}

SCSS

$custom: #a33828;
$custom-light: #c67463;
$custom-dark: #000000;

JSON

{
  "hex": "#a33828",
  "rgb": {
    "r": 163,
    "g": 56,
    "b": 40
  },
  "hsl": {
    "h": 7.805,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4923,
    "c": 0.14463,
    "h": 31.2
  },
  "luminance": 0.10768
}

Semantic roles & 50–950 ramp

primary

#A33828

secondary

#66B5C1

accent

#CFE444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140805

muted

#837B79

Preview Lab

Preview with #A33828

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

Preview Lab → · Contrast checker → · Palette generator →