#A33F2A#A33F2A

#A33F2A is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.2% C 0.137 H 33.6°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#A33F2A
RGB	rgb(163, 63, 42)
HSL	hsl(10, 59%, 40%)
HSV	hsv(10, 74%, 64%)
CMYK	cmyk(0%, 61.3%, 74.2%, 36.1%)
CIE-LAB	lab(40.43, 40.14, 33.69)
CIE-LCH	lch(40.43, 52.41, 40.01°)
OKLab	oklab(50.17% 0.1144 0.0759)
OKLCH	oklch(50.17% 0.137 33.6)
XYZ	xyz(17.3015, 11.5111, 3.5008)
Luminance	0.1151 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F2A #2A8EA3

analogous

#A32A52 #A33F2A #A37B2A

triadic

#A33F2A #2AA33F #3F2AA3

tetradic

#A33F2A #52A32A #2A8EA3 #7B2AA3

square

#A33F2A #52A32A #2A8EA3 #7B2AA3

split-complementary

#A33F2A #2AA37B #2A52A3

monochromatic

#421911 #722C1D #A33F2A #CD563D #DA816E

Accessibility & contrast

On white

6.36

#A33F2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#A33F2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F2A

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F2A	#FFFFFF	#000000	##FFFFFF
##A33F2A	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5127

Deuteranopia (green-blind)

#736827

Tritanopia (blue-blind)

#B3283B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33f2a;
/* rgb */ color: rgb(163, 63, 42);
/* oklch */ color: oklch(50.2% 0.137 33.6);

Tailwind

colors: {
  custom: {
    50: '#c57864',
    500: '#a33f2a',
    950: '#000000',
  },
}

SCSS

$custom: #a33f2a;
$custom-light: #c57864;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f2a",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 10.413,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.5017,
    "c": 0.13723,
    "h": 33.6
  },
  "luminance": 0.11509
}

Semantic roles & 50–950 ramp

primary

#A33F2A

secondary

#68B1C0

accent

#C7E246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A33F2A

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

Preview Lab → · Contrast checker → · Palette generator →