#AD3031#AD3031

#AD3031 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.2% C 0.162 H 24.8°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#AD3031
RGB	rgb(173, 48, 49)
HSL	hsl(360, 57%, 43%)
HSV	hsv(360, 72%, 68%)
CMYK	cmyk(0%, 72.3%, 71.7%, 32.2%)
CIE-LAB	lab(39.95, 50.39, 29.55)
CIE-LCH	lch(39.95, 58.42, 30.39°)
OKLab	oklab(50.18% 0.1468 0.0677)
OKLCH	oklch(50.18% 0.162 24.8)
XYZ	xyz(18.8470, 11.2227, 4.0789)
Luminance	0.1122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3031 #30ADAC

analogous

#AD306F #AD3031 #AD6D30

triadic

#AD3031 #31AD30 #3031AD

tetradic

#AD3031 #6FAD30 #30ADAC #6D30AD

square

#AD3031 #6FAD30 #30ADAC #6D30AD

split-complementary

#AD3031 #30AD6D #306FAD

monochromatic

#4D1516 #7D2323 #AD3031 #CE4D4E #DB7D7D

Accessibility & contrast

On white

6.47

#AD3031 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#AD3031 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3031

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3031	#FFFFFF	#000000	##FFFFFF
##AD3031	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544D30

Deuteranopia (green-blind)

#73682D

Tritanopia (blue-blind)

#BE0032

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ad3031;
/* rgb */ color: rgb(173, 48, 49);
/* oklch */ color: oklch(50.2% 0.162 24.8);

Tailwind

colors: {
  custom: {
    50: '#cd7169',
    500: '#ad3031',
    950: '#000000',
  },
}

SCSS

$custom: #ad3031;
$custom-light: #cd7169;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3031",
  "rgb": {
    "r": 173,
    "g": 48,
    "b": 49
  },
  "hsl": {
    "h": 359.52,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5018,
    "c": 0.16163,
    "h": 24.8
  },
  "luminance": 0.1122
}

Semantic roles & 50–950 ramp

primary

#AD3031

secondary

#75C3C3

accent

#E0DF48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AD3031

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

Preview Lab → · Contrast checker → · Palette generator →