#A33F3D#A33F3D

#A33F3D is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.133 H 24.2°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#A33F3D
RGB	rgb(163, 63, 61)
HSL	hsl(1, 46%, 44%)
HSV	hsv(1, 63%, 64%)
CMYK	cmyk(0%, 61.3%, 62.6%, 36.1%)
CIE-LAB	lab(40.70, 41.25, 22.80)
CIE-LCH	lch(40.70, 47.13, 28.92°)
OKLab	oklab(50.47% 0.1216 0.0547)
OKLCH	oklch(50.47% 0.133 24.2)
XYZ	xyz(17.7257, 11.6808, 5.7352)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F3D #3DA1A3

analogous

#A33D6E #A33F3D #A3723D

triadic

#A33F3D #3DA33F #3F3DA3

tetradic

#A33F3D #6EA33D #3DA1A3 #723DA3

square

#A33F3D #6EA33D #3DA1A3 #723DA3

split-complementary

#A33F3D #3DA372 #3D6EA3

monochromatic

#4A1D1C #762E2C #A33F3D #C25D5B #D28988

Accessibility & contrast

On white

6.30

#A33F3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A33F3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F3D

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F3D	#FFFFFF	#000000	##FFFFFF
##A33F3D	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533C

Deuteranopia (green-blind)

#71683A

Tritanopia (blue-blind)

#B22B3F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a33f3d;
/* rgb */ color: rgb(163, 63, 61);
/* oklch */ color: oklch(50.5% 0.133 24.2);

Tailwind

colors: {
  custom: {
    50: '#c47872',
    500: '#a33f3d',
    950: '#000000',
  },
}

SCSS

$custom: #a33f3d;
$custom-light: #c47872;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f3d",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 1.176,
    "s": 45.536,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50467,
    "c": 0.13332,
    "h": 24.2
  },
  "luminance": 0.11678
}

Semantic roles & 50–950 ramp

primary

#A33F3D

secondary

#7FBCBD

accent

#D3D553

background

#FCF7F6

surface

#F9EEEC

border

#D2C9C7

text

#140908

muted

#827B7B

Preview Lab

Preview with #A33F3D

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

Preview Lab → · Contrast checker → · Palette generator →