#AD3121#AD3121

#AD3121 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.1% C 0.163 H 30.7°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#AD3121
RGB	rgb(173, 49, 33)
HSL	hsl(7, 68%, 40%)
HSV	hsv(7, 81%, 68%)
CMYK	cmyk(0%, 71.7%, 80.9%, 32.2%)
CIE-LAB	lab(39.90, 49.36, 38.65)
CIE-LCH	lch(39.90, 62.70, 38.06°)
OKLab	oklab(50.08% 0.1402 0.0834)
OKLCH	oklch(50.08% 0.163 30.7)
XYZ	xyz(18.6086, 11.1935, 2.6193)
Luminance	0.1119 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3121 #219DAD

analogous

#AD2157 #AD3121 #AD7721

triadic

#AD3121 #21AD31 #3121AD

tetradic

#AD3121 #57AD21 #219DAD #7721AD

square

#AD3121 #57AD21 #219DAD #7721AD

split-complementary

#AD3121 #21AD77 #2157AD

monochromatic

#46140D #7A2217 #AD3121 #D84633 #E27566

Accessibility & contrast

On white

6.49

#AD3121 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#AD3121 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3121

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3121	#FFFFFF	#000000	##FFFFFF
##AD3121	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D1E

Deuteranopia (green-blind)

#75681B

Tritanopia (blue-blind)

#BF002E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ad3121;
/* rgb */ color: rgb(173, 49, 33);
/* oklch */ color: oklch(50.1% 0.163 30.7);

Tailwind

colors: {
  custom: {
    50: '#ce715e',
    500: '#ad3121',
    950: '#000000',
  },
}

SCSS

$custom: #ad3121;
$custom-light: #ce715e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3121",
  "rgb": {
    "r": 173,
    "g": 49,
    "b": 33
  },
  "hsl": {
    "h": 6.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50084,
    "c": 0.16312,
    "h": 30.7
  },
  "luminance": 0.11191
}

Semantic roles & 50–950 ramp

primary

#AD3121

secondary

#62BCC7

accent

#D7EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AD3121

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

Preview Lab → · Contrast checker → · Palette generator →