#AD3333#AD3333

#AD3333 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.159 H 24.8°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#AD3333
RGB	rgb(173, 51, 51)
HSL	hsl(0, 54%, 44%)
HSV	hsv(0, 71%, 68%)
CMYK	cmyk(0%, 70.5%, 70.5%, 32.2%)
CIE-LAB	lab(40.40, 49.34, 28.88)
CIE-LCH	lch(40.40, 57.17, 30.34°)
OKLab	oklab(50.52% 0.1439 0.0666)
OKLCH	oklch(50.52% 0.159 24.8)
XYZ	xyz(19.0170, 11.4937, 4.3485)
Luminance	0.1149 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3333 #33ADAD

analogous

#AD3370 #AD3333 #AD7033

triadic

#AD3333 #33AD33 #3333AD

tetradic

#AD3333 #70AD33 #33ADAD #7033AD

square

#AD3333 #70AD33 #33ADAD #7033AD

split-complementary

#AD3333 #33AD70 #3370AD

monochromatic

#4E1717 #7E2525 #AD3333 #CC5151 #DA8181

Accessibility & contrast

On white

6.37

#AD3333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#AD3333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3333

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3333	#FFFFFF	#000000	##FFFFFF
##AD3333	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E32

Deuteranopia (green-blind)

#74692F

Tritanopia (blue-blind)

#BE0A34

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad3333;
/* rgb */ color: rgb(173, 51, 51);
/* oklch */ color: oklch(50.5% 0.159 24.8);

Tailwind

colors: {
  custom: {
    50: '#cd736b',
    500: '#ad3333',
    950: '#000000',
  },
}

SCSS

$custom: #ad3333;
$custom-light: #cd736b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3333",
  "rgb": {
    "r": 173,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50523,
    "c": 0.15854,
    "h": 24.8
  },
  "luminance": 0.11491
}

Semantic roles & 50–950 ramp

primary

#AD3333

secondary

#79C3C3

accent

#DEDE4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AD3333

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

Preview Lab → · Contrast checker → · Palette generator →