#AD3521#AD3521

#AD3521 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.160 H 32.0°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#AD3521
RGB	rgb(173, 53, 33)
HSL	hsl(9, 68%, 40%)
HSV	hsv(9, 81%, 68%)
CMYK	cmyk(0%, 69.4%, 80.9%, 32.2%)
CIE-LAB	lab(40.48, 47.79, 39.22)
CIE-LCH	lch(40.48, 61.82, 39.38°)
OKLab	oklab(50.52% 0.1353 0.0846)
OKLCH	oklch(50.52% 0.16 32)
XYZ	xyz(18.7834, 11.5431, 2.6775)
Luminance	0.1154 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3521 #2199AD

analogous

#AD2153 #AD3521 #AD7B21

triadic

#AD3521 #21AD35 #3521AD

tetradic

#AD3521 #53AD21 #2199AD #7B21AD

square

#AD3521 #53AD21 #2199AD #7B21AD

split-complementary

#AD3521 #21AD7B #2153AD

monochromatic

#46160D #7A2517 #AD3521 #D84B33 #E27866

Accessibility & contrast

On white

6.35

#AD3521 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#AD3521 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3521

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3521	#FFFFFF	#000000	##FFFFFF
##AD3521	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F1E

Deuteranopia (green-blind)

#76691C

Tritanopia (blue-blind)

#BF0931

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad3521;
/* rgb */ color: rgb(173, 53, 33);
/* oklch */ color: oklch(50.5% 0.160 32.0);

Tailwind

colors: {
  custom: {
    50: '#ce735e',
    500: '#ad3521',
    950: '#000000',
  },
}

SCSS

$custom: #ad3521;
$custom-light: #ce735e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3521",
  "rgb": {
    "r": 173,
    "g": 53,
    "b": 33
  },
  "hsl": {
    "h": 8.571,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50516,
    "c": 0.15958,
    "h": 32
  },
  "luminance": 0.1154
}

Semantic roles & 50–950 ramp

primary

#AD3521

secondary

#62B9C7

accent

#D2EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD3521

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

Preview Lab → · Contrast checker → · Palette generator →