#AD2B37#AD2B37

#AD2B37 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.8% C 0.166 H 20.9°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#AD2B37
RGB	rgb(173, 43, 55)
HSL	hsl(354, 60%, 42%)
HSV	hsv(354, 75%, 68%)
CMYK	cmyk(0%, 75.1%, 68.2%, 32.2%)
CIE-LAB	lab(39.40, 52.49, 25.22)
CIE-LCH	lch(39.40, 58.24, 25.66°)
OKLab	oklab(49.79% 0.1547 0.0591)
OKLCH	oklch(49.79% 0.166 20.9)
XYZ	xyz(18.7891, 10.8907, 4.7265)
Luminance	0.1089 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2B37 #2BADA1

analogous

#AD2B78 #AD2B37 #AD602B

triadic

#AD2B37 #37AD2B #2B37AD

tetradic

#AD2B37 #78AD2B #2BADA1 #602BAD

square

#AD2B37 #78AD2B #2BADA1 #602BAD

split-complementary

#AD2B37 #2BAD60 #2B78AD

monochromatic

#4B1318 #7C1F27 #AD2B37 #D14551 #DD767F

Accessibility & contrast

On white

6.61

#AD2B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#AD2B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2B37

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2B37	#FFFFFF	#000000	##FFFFFF
##AD2B37	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B36

Deuteranopia (green-blind)

#716733

Tritanopia (blue-blind)

#BE0031

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #ad2b37;
/* rgb */ color: rgb(173, 43, 55);
/* oklch */ color: oklch(49.8% 0.166 20.9);

Tailwind

colors: {
  custom: {
    50: '#cd6f6d',
    500: '#ad2b37',
    950: '#000000',
  },
}

SCSS

$custom: #ad2b37;
$custom-light: #cd6f6d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2b37",
  "rgb": {
    "r": 173,
    "g": 43,
    "b": 55
  },
  "hsl": {
    "h": 354.462,
    "s": 60.185,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49794,
    "c": 0.16566,
    "h": 20.9
  },
  "luminance": 0.10888
}

Semantic roles & 50–950 ramp

primary

#AD2B37

secondary

#6FC4BD

accent

#E3D544

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD2B37

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

Preview Lab → · Contrast checker → · Palette generator →