#AF3731#AF3731

#AF3731 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.3% C 0.157 H 27.0°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#AF3731
RGB	rgb(175, 55, 49)
HSL	hsl(3, 56%, 44%)
HSV	hsv(3, 72%, 69%)
CMYK	cmyk(0%, 68.6%, 72%, 31.4%)
CIE-LAB	lab(41.33, 48.30, 31.25)
CIE-LCH	lch(41.33, 57.53, 32.90°)
OKLab	oklab(51.28% 0.1399 0.0714)
OKLCH	oklch(51.28% 0.157 27)
XYZ	xyz(19.6019, 12.0710, 4.2029)
Luminance	0.1207 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AF3731 #31A9AF

analogous

#AF316A #AF3731 #AF7631

triadic

#AF3731 #31AF37 #3731AF

tetradic

#AF3731 #6AAF31 #31A9AF #7631AF

square

#AF3731 #6AAF31 #31A9AF #7631AF

split-complementary

#AF3731 #31AF76 #316AAF

monochromatic

#4F1916 #7F2824 #AF3731 #CE554F #DB847F

Accessibility & contrast

On white

6.15

#AF3731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#AF3731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AF3731

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AF3731	#FFFFFF	#000000	##FFFFFF
##AF3731	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#776B2D

Tritanopia (blue-blind)

#C01337

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #af3731;
/* rgb */ color: rgb(175, 55, 49);
/* oklch */ color: oklch(51.3% 0.157 27.0);

Tailwind

colors: {
  custom: {
    50: '#cf7569',
    500: '#af3731',
    950: '#000000',
  },
}

SCSS

$custom: #af3731;
$custom-light: #cf7569;
$custom-dark: #000000;

JSON

{
  "hex": "#af3731",
  "rgb": {
    "r": 175,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.857,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.51277,
    "c": 0.15705,
    "h": 27
  },
  "luminance": 0.12068
}

Semantic roles & 50–950 ramp

primary

#AF3731

secondary

#78C0C4

accent

#D8E048

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AF3731

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

Preview Lab → · Contrast checker → · Palette generator →