#AD3531#AD3531

#AD3531 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.7% C 0.157 H 26.3°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#AD3531
RGB	rgb(173, 53, 49)
HSL	hsl(2, 56%, 44%)
HSV	hsv(2, 72%, 68%)
CMYK	cmyk(0%, 69.4%, 71.7%, 32.2%)
CIE-LAB	lab(40.66, 48.44, 30.38)
CIE-LCH	lch(40.66, 57.18, 32.09°)
OKLab	oklab(50.71% 0.1406 0.0696)
OKLCH	oklch(50.71% 0.157 26.3)
XYZ	xyz(19.0631, 11.6550, 4.1510)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3531 #31A9AD

analogous

#AD316B #AD3531 #AD7331

triadic

#AD3531 #31AD35 #3531AD

tetradic

#AD3531 #6BAD31 #31A9AD #7331AD

square

#AD3531 #6BAD31 #31A9AD #7331AD

split-complementary

#AD3531 #31AD73 #316BAD

monochromatic

#4E1816 #7D2623 #AD3531 #CD524E #DA817E

Accessibility & contrast

On white

6.31

#AD3531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#AD3531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3531

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3531	#FFFFFF	#000000	##FFFFFF
##AD3531	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2F

Deuteranopia (green-blind)

#75692D

Tritanopia (blue-blind)

#BE0F35

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad3531;
/* rgb */ color: rgb(173, 53, 49);
/* oklch */ color: oklch(50.7% 0.157 26.3);

Tailwind

colors: {
  custom: {
    50: '#cd7469',
    500: '#ad3531',
    950: '#000000',
  },
}

SCSS

$custom: #ad3531;
$custom-light: #cd7469;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3531",
  "rgb": {
    "r": 173,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 1.935,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.5071,
    "c": 0.15686,
    "h": 26.3
  },
  "luminance": 0.11652
}

Semantic roles & 50–950 ramp

primary

#AD3531

secondary

#77C1C3

accent

#DADF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AD3531

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

Preview Lab → · Contrast checker → · Palette generator →