#A33133#A33133

#A33133 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.6% C 0.150 H 23.8°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#A33133
RGB	rgb(163, 49, 51)
HSL	hsl(359, 54%, 42%)
HSV	hsv(359, 70%, 64%)
CMYK	cmyk(0%, 69.9%, 68.7%, 36.1%)
CIE-LAB	lab(38.24, 46.81, 25.84)
CIE-LCH	lch(38.24, 53.47, 28.90°)
OKLab	oklab(48.57% 0.1371 0.0603)
OKLCH	oklch(48.57% 0.15 23.8)
XYZ	xyz(16.8019, 10.2246, 4.2201)
Luminance	0.1022 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33133 #31A3A1

analogous

#A3316C #A33133 #A36831

triadic

#A33133 #33A331 #3133A3

tetradic

#A33133 #6CA331 #31A3A1 #6831A3

square

#A33133 #6CA331 #31A3A1 #6831A3

split-complementary

#A33133 #31A368 #316CA3

monochromatic

#451516 #742324 #A33133 #C8494B #D6787A

Accessibility & contrast

On white

6.90

#A33133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#A33133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33133

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33133	#FFFFFF	#000000	##FFFFFF
##A33133	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514A32

Deuteranopia (green-blind)

#6D6330

Tritanopia (blue-blind)

#B30F33

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a33133;
/* rgb */ color: rgb(163, 49, 51);
/* oklch */ color: oklch(48.6% 0.150 23.8);

Tailwind

colors: {
  custom: {
    50: '#c5716a',
    500: '#a33133',
    950: '#000000',
  },
}

SCSS

$custom: #a33133;
$custom-light: #c5716a;
$custom-dark: #000000;

JSON

{
  "hex": "#a33133",
  "rgb": {
    "r": 163,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 358.947,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48567,
    "c": 0.14982,
    "h": 23.8
  },
  "luminance": 0.10222
}

Semantic roles & 50–950 ramp

primary

#A33133

secondary

#71BFBD

accent

#DDDB4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33133

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

Preview Lab → · Contrast checker → · Palette generator →