#AD3633#AD3633

#AD3633 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.9% C 0.156 H 25.8°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#AD3633
RGB	rgb(173, 54, 51)
HSL	hsl(1, 54%, 44%)
HSV	hsv(1, 71%, 68%)
CMYK	cmyk(0%, 68.8%, 70.5%, 32.2%)
CIE-LAB	lab(40.84, 48.14, 29.40)
CIE-LCH	lch(40.84, 56.40, 31.42°)
OKLab	oklab(50.85% 0.1401 0.0678)
OKLCH	oklch(50.85% 0.156 25.8)
XYZ	xyz(19.1523, 11.7644, 4.3936)
Luminance	0.1176 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3633 #33AAAD

analogous

#AD336D #AD3633 #AD7333

triadic

#AD3633 #33AD36 #3633AD

tetradic

#AD3633 #6DAD33 #33AAAD #7333AD

square

#AD3633 #6DAD33 #33AAAD #7333AD

split-complementary

#AD3633 #33AD73 #336DAD

monochromatic

#4E1817 #7E2725 #AD3633 #CC5451 #DA8381

Accessibility & contrast

On white

6.26

#AD3633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#AD3633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3633

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3633	#FFFFFF	#000000	##FFFFFF
##AD3633	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575032

Deuteranopia (green-blind)

#756A2F

Tritanopia (blue-blind)

#BE1336

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad3633;
/* rgb */ color: rgb(173, 54, 51);
/* oklch */ color: oklch(50.9% 0.156 25.8);

Tailwind

colors: {
  custom: {
    50: '#cd746b',
    500: '#ad3633',
    950: '#000000',
  },
}

SCSS

$custom: #ad3633;
$custom-light: #cd746b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3633",
  "rgb": {
    "r": 173,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.475,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50851,
    "c": 0.15559,
    "h": 25.8
  },
  "luminance": 0.11762
}

Semantic roles & 50–950 ramp

primary

#AD3633

secondary

#79C1C3

accent

#DADE4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AD3633

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

Preview Lab → · Contrast checker → · Palette generator →