#AD3540#AD3540

#AD3540 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.155 H 19.5°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AD3540
RGB	rgb(173, 53, 64)
HSL	hsl(355, 53%, 44%)
HSV	hsv(355, 69%, 68%)
CMYK	cmyk(0%, 69.4%, 63%, 32.2%)
CIE-LAB	lab(40.90, 49.30, 21.56)
CIE-LCH	lch(40.90, 53.80, 23.62°)
OKLab	oklab(50.97% 0.1464 0.0519)
OKLCH	oklch(50.97% 0.155 19.5)
XYZ	xyz(19.4340, 11.8034, 6.1044)
Luminance	0.1180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3540 #35ADA2

analogous

#AD357C #AD3540 #AD6635

triadic

#AD3540 #40AD35 #3540AD

tetradic

#AD3540 #7CAD35 #35ADA2 #6635AD

square

#AD3540 #7CAD35 #35ADA2 #6635AD

split-complementary

#AD3540 #35AD66 #357CAD

monochromatic

#4F181D #7E272F #AD3540 #CB545F #D9838B

Accessibility & contrast

On white

6.25

#AD3540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD3540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3540

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3540	#FFFFFF	#000000	##FFFFFF
##AD3540	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555040

Deuteranopia (green-blind)

#736A3D

Tritanopia (blue-blind)

#BE163A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad3540;
/* rgb */ color: rgb(173, 53, 64);
/* oklch */ color: oklch(51.0% 0.155 19.5);

Tailwind

colors: {
  custom: {
    50: '#cc7474',
    500: '#ad3540',
    950: '#000000',
  },
}

SCSS

$custom: #ad3540;
$custom-light: #cc7474;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3540",
  "rgb": {
    "r": 173,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 354.5,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50966,
    "c": 0.15534,
    "h": 19.5
  },
  "luminance": 0.11801
}

Semantic roles & 50–950 ramp

primary

#AD3540

secondary

#7BC3BC

accent

#DDCF4B

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #AD3540

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

Preview Lab → · Contrast checker → · Palette generator →