#AD2631#AD2631

#AD2631 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.3% C 0.170 H 22.3°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#AD2631
RGB	rgb(173, 38, 49)
HSL	hsl(355, 64%, 41%)
HSV	hsv(355, 78%, 68%)
CMYK	cmyk(0%, 78%, 71.7%, 32.2%)
CIE-LAB	lab(38.72, 53.83, 28.09)
CIE-LCH	lch(38.72, 60.72, 27.56°)
OKLab	oklab(49.26% 0.1577 0.0645)
OKLCH	oklch(49.26% 0.17 22.3)
XYZ	xyz(18.4832, 10.4951, 3.9577)
Luminance	0.1049 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2631 #26ADA2

analogous

#AD2675 #AD2631 #AD5F26

triadic

#AD2631 #31AD26 #2631AD

tetradic

#AD2631 #75AD26 #26ADA2 #5F26AD

square

#AD2631 #75AD26 #26ADA2 #5F26AD

split-complementary

#AD2631 #26AD5F #2675AD

monochromatic

#491015 #7B1B23 #AD2631 #D43C48 #DF6E77

Accessibility & contrast

On white

6.78

#AD2631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#AD2631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2631

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2631	#FFFFFF	#000000	##FFFFFF
##AD2631	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4930

Deuteranopia (green-blind)

#70662C

Tritanopia (blue-blind)

#BE002C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ad2631;
/* rgb */ color: rgb(173, 38, 49);
/* oklch */ color: oklch(49.3% 0.170 22.3);

Tailwind

colors: {
  custom: {
    50: '#ce6d69',
    500: '#ad2631',
    950: '#000000',
  },
}

SCSS

$custom: #ad2631;
$custom-light: #ce6d69;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2631",
  "rgb": {
    "r": 173,
    "g": 38,
    "b": 49
  },
  "hsl": {
    "h": 355.111,
    "s": 63.981,
    "l": 41.373
  },
  "oklch": {
    "l": 0.4926,
    "c": 0.17037,
    "h": 22.3
  },
  "luminance": 0.10492
}

Semantic roles & 50–950 ramp

primary

#AD2631

secondary

#69C6BE

accent

#E7D941

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AD2631

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

Preview Lab → · Contrast checker → · Palette generator →