#AD3640#AD3640

#AD3640 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.154 H 19.8°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#AD3640
RGB	rgb(173, 54, 64)
HSL	hsl(355, 52%, 45%)
HSV	hsv(355, 69%, 68%)
CMYK	cmyk(0%, 68.8%, 63%, 32.2%)
CIE-LAB	lab(41.05, 48.89, 21.75)
CIE-LCH	lch(41.05, 53.51, 23.98°)
OKLab	oklab(51.08% 0.1451 0.0524)
OKLCH	oklch(51.08% 0.154 19.8)
XYZ	xyz(19.4801, 11.8955, 6.1198)
Luminance	0.1189 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3640 #36ADA3

analogous

#AD367C #AD3640 #AD6836

triadic

#AD3640 #40AD36 #3640AD

tetradic

#AD3640 #7CAD36 #36ADA3 #6836AD

square

#AD3640 #7CAD36 #36ADA3 #6836AD

split-complementary

#AD3640 #36AD68 #367CAD

monochromatic

#50191D #7E272F #AD3640 #CA5660 #D9858C

Accessibility & contrast

On white

6.22

#AD3640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#AD3640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3640

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3640	#FFFFFF	#000000	##FFFFFF
##AD3640	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565140

Deuteranopia (green-blind)

#746A3D

Tritanopia (blue-blind)

#BE183B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ad3640;
/* rgb */ color: rgb(173, 54, 64);
/* oklch */ color: oklch(51.1% 0.154 19.8);

Tailwind

colors: {
  custom: {
    50: '#cc7574',
    500: '#ad3640',
    950: '#000000',
  },
}

SCSS

$custom: #ad3640;
$custom-light: #cc7574;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3640",
  "rgb": {
    "r": 173,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 354.958,
    "s": 52.423,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51076,
    "c": 0.15427,
    "h": 19.8
  },
  "luminance": 0.11893
}

Semantic roles & 50–950 ramp

primary

#AD3640

secondary

#7CC2BD

accent

#DCD04C

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #AD3640

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

Preview Lab → · Contrast checker → · Palette generator →