#AD2721#AD2721

#AD2721 is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.1% C 0.171 H 28.1°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#AD2721
RGB	rgb(173, 39, 33)
HSL	hsl(3, 68%, 40%)
HSV	hsv(3, 81%, 68%)
CMYK	cmyk(0%, 77.5%, 80.9%, 32.2%)
CIE-LAB	lab(38.63, 52.89, 37.39)
CIE-LCH	lch(38.63, 64.77, 35.26°)
OKLab	oklab(49.14% 0.1512 0.0806)
OKLCH	oklch(49.14% 0.171 28.1)
XYZ	xyz(18.2358, 10.4480, 2.4950)
Luminance	0.1045 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2721 #21A7AD

analogous

#AD2161 #AD2721 #AD6D21

triadic

#AD2721 #21AD27 #2721AD

tetradic

#AD2721 #61AD21 #21A7AD #6D21AD

square

#AD2721 #61AD21 #21A7AD #6D21AD

split-complementary

#AD2721 #21AD6D #2161AD

monochromatic

#46100D #7A1B17 #AD2721 #D83A33 #E26C66

Accessibility & contrast

On white

6.80

#AD2721 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#AD2721 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2721

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2721	#FFFFFF	#000000	##FFFFFF
##AD2721	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51481F

Deuteranopia (green-blind)

#72651B

Tritanopia (blue-blind)

#BF0027

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ad2721;
/* rgb */ color: rgb(173, 39, 33);
/* oklch */ color: oklch(49.1% 0.171 28.1);

Tailwind

colors: {
  custom: {
    50: '#cf6d5d',
    500: '#ad2721',
    950: '#000000',
  },
}

SCSS

$custom: #ad2721;
$custom-light: #cf6d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2721",
  "rgb": {
    "r": 173,
    "g": 39,
    "b": 33
  },
  "hsl": {
    "h": 2.571,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49137,
    "c": 0.17136,
    "h": 28.1
  },
  "luminance": 0.10445
}

Semantic roles & 50–950 ramp

primary

#AD2721

secondary

#62C3C7

accent

#E3EB3D

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AD2721

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

Preview Lab → · Contrast checker → · Palette generator →