#AD3133#AD3133

#AD3133 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.3% C 0.160 H 24.2°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#AD3133
RGB	rgb(173, 49, 51)
HSL	hsl(359, 56%, 44%)
HSV	hsv(359, 72%, 68%)
CMYK	cmyk(0%, 71.7%, 70.5%, 32.2%)
CIE-LAB	lab(40.12, 50.11, 28.54)
CIE-LCH	lch(40.12, 57.67, 29.67°)
OKLab	oklab(50.31% 0.1463 0.0659)
OKLCH	oklch(50.31% 0.16 24.2)
XYZ	xyz(18.9315, 11.3227, 4.3200)
Luminance	0.1132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3133 #31ADAB

analogous

#AD3171 #AD3133 #AD6D31

triadic

#AD3133 #33AD31 #3133AD

tetradic

#AD3133 #71AD31 #31ADAB #6D31AD

square

#AD3133 #71AD31 #31ADAB #6D31AD

split-complementary

#AD3133 #31AD6D #3171AD

monochromatic

#4E1617 #7D2325 #AD3133 #CD4E50 #DA7E7F

Accessibility & contrast

On white

6.43

#AD3133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#AD3133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3133

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3133	#FFFFFF	#000000	##FFFFFF
##AD3133	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E32

Deuteranopia (green-blind)

#73682F

Tritanopia (blue-blind)

#BE0233

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad3133;
/* rgb */ color: rgb(173, 49, 51);
/* oklch */ color: oklch(50.3% 0.160 24.2);

Tailwind

colors: {
  custom: {
    50: '#cd726b',
    500: '#ad3133',
    950: '#000000',
  },
}

SCSS

$custom: #ad3133;
$custom-light: #cd726b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3133",
  "rgb": {
    "r": 173,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 359.032,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.50313,
    "c": 0.16045,
    "h": 24.2
  },
  "luminance": 0.1132
}

Semantic roles & 50–950 ramp

primary

#AD3133

secondary

#77C3C2

accent

#DFDD49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AD3133

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

Preview Lab → · Contrast checker → · Palette generator →