#AD303A#AD303A

#AD303A is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.3% C 0.161 H 20.9°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#AD303A
RGB	rgb(173, 48, 58)
HSL	hsl(355, 57%, 43%)
HSV	hsv(355, 72%, 68%)
CMYK	cmyk(0%, 72.3%, 66.5%, 32.2%)
CIE-LAB	lab(40.09, 50.87, 24.24)
CIE-LCH	lch(40.09, 56.35, 25.48°)
OKLab	oklab(50.33% 0.1502 0.0573)
OKLCH	oklch(50.33% 0.161 20.9)
XYZ	xyz(19.0563, 11.3064, 5.1811)
Luminance	0.1130 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD303A #30ADA3

analogous

#AD3078 #AD303A #AD6430

triadic

#AD303A #3AAD30 #303AAD

tetradic

#AD303A #78AD30 #30ADA3 #6430AD

square

#AD303A #78AD30 #30ADA3 #6430AD

split-complementary

#AD303A #30AD64 #3078AD

monochromatic

#4D151A #7D232A #AD303A #CE4D57 #DB7D84

Accessibility & contrast

On white

6.44

#AD303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#AD303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD303A

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD303A	#FFFFFF	#000000	##FFFFFF
##AD303A	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E39

Deuteranopia (green-blind)

#726836

Tritanopia (blue-blind)

#BE0335

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ad303a;
/* rgb */ color: rgb(173, 48, 58);
/* oklch */ color: oklch(50.3% 0.161 20.9);

Tailwind

colors: {
  custom: {
    50: '#cd7170',
    500: '#ad303a',
    950: '#000000',
  },
}

SCSS

$custom: #ad303a;
$custom-light: #cd7170;
$custom-dark: #000000;

JSON

{
  "hex": "#ad303a",
  "rgb": {
    "r": 173,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 355.2,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50328,
    "c": 0.16076,
    "h": 20.9
  },
  "luminance": 0.11304
}

Semantic roles & 50–950 ramp

primary

#AD303A

secondary

#75C3BD

accent

#E0D448

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD303A

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

Preview Lab → · Contrast checker → · Palette generator →