#A33639#A33639

#A33639 is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.2% C 0.144 H 22.6°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#A33639
RGB	rgb(163, 54, 57)
HSL	hsl(358, 50%, 43%)
HSV	hsv(358, 67%, 64%)
CMYK	cmyk(0%, 66.9%, 65%, 36.1%)
CIE-LAB	lab(39.11, 45.07, 23.23)
CIE-LCH	lch(39.11, 50.71, 27.26°)
OKLab	oklab(49.25% 0.1329 0.0553)
OKLCH	oklch(49.25% 0.144 22.6)
XYZ	xyz(17.1637, 10.7227, 5.0360)
Luminance	0.1072 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33639 #36A3A0

analogous

#A3366F #A33639 #A36A36

triadic

#A33639 #39A336 #3639A3

tetradic

#A33639 #6FA336 #36A3A0 #6A36A3

square

#A33639 #6FA336 #36A3A0 #6A36A3

split-complementary

#A33639 #36A36A #366FA3

monochromatic

#471819 #752729 #A33639 #C55154 #D57F81

Accessibility & contrast

On white

6.68

#A33639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#A33639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33639

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33639	#FFFFFF	#000000	##FFFFFF
##A33639	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D38

Deuteranopia (green-blind)

#6E6536

Tritanopia (blue-blind)

#B31C38

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a33639;
/* rgb */ color: rgb(163, 54, 57);
/* oklch */ color: oklch(49.2% 0.144 22.6);

Tailwind

colors: {
  custom: {
    50: '#c5736f',
    500: '#a33639',
    950: '#000000',
  },
}

SCSS

$custom: #a33639;
$custom-light: #c5736f;
$custom-dark: #000000;

JSON

{
  "hex": "#a33639",
  "rgb": {
    "r": 163,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.349,
    "s": 50.23,
    "l": 42.549
  },
  "oklch": {
    "l": 0.49247,
    "c": 0.14391,
    "h": 22.6
  },
  "luminance": 0.1072
}

Semantic roles & 50–950 ramp

primary

#A33639

secondary

#77BEBC

accent

#DAD64E

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140807

muted

#827B7A

Preview Lab

Preview with #A33639

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

Preview Lab → · Contrast checker → · Palette generator →