#AD3931#AD3931

#AD3931 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.153 H 27.7°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#AD3931
RGB	rgb(173, 57, 49)
HSL	hsl(4, 56%, 44%)
HSV	hsv(4, 72%, 68%)
CMYK	cmyk(0%, 67.1%, 71.7%, 32.2%)
CIE-LAB	lab(41.27, 46.79, 31.09)
CIE-LCH	lch(41.27, 56.17, 33.61°)
OKLab	oklab(51.17% 0.1354 0.0711)
OKLCH	oklch(51.17% 0.153 27.7)
XYZ	xyz(19.2532, 12.0350, 4.2143)
Luminance	0.1203 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3931 #31A5AD

analogous

#AD3167 #AD3931 #AD7731

triadic

#AD3931 #31AD39 #3931AD

tetradic

#AD3931 #67AD31 #31A5AD #7731AD

square

#AD3931 #67AD31 #31A5AD #7731AD

split-complementary

#AD3931 #31AD77 #3167AD

monochromatic

#4E1A16 #7D2923 #AD3931 #CD564E #DA847E

Accessibility & contrast

On white

6.16

#AD3931 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#AD3931 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3931

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3931	#FFFFFF	#000000	##FFFFFF
##AD3931	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#766B2D

Tritanopia (blue-blind)

#BE1938

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ad3931;
/* rgb */ color: rgb(173, 57, 49);
/* oklch */ color: oklch(51.2% 0.153 27.7);

Tailwind

colors: {
  custom: {
    50: '#cd7669',
    500: '#ad3931',
    950: '#000000',
  },
}

SCSS

$custom: #ad3931;
$custom-light: #cd7669;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3931",
  "rgb": {
    "r": 173,
    "g": 57,
    "b": 49
  },
  "hsl": {
    "h": 3.871,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51166,
    "c": 0.15292,
    "h": 27.7
  },
  "luminance": 0.12032
}

Semantic roles & 50–950 ramp

primary

#AD3931

secondary

#77BEC3

accent

#D5DF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AD3931

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

Preview Lab → · Contrast checker → · Palette generator →