#AD3523#AD3523

#AD3523 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.5% C 0.159 H 31.4°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#AD3523
RGB	rgb(173, 53, 35)
HSL	hsl(8, 66%, 41%)
HSV	hsv(8, 80%, 68%)
CMYK	cmyk(0%, 69.4%, 79.8%, 32.2%)
CIE-LAB	lab(40.50, 47.86, 38.17)
CIE-LCH	lch(40.50, 61.22, 38.58°)
OKLab	oklab(50.54% 0.1359 0.083)
OKLCH	oklch(50.54% 0.159 31.4)
XYZ	xyz(18.8122, 11.5546, 2.8295)
Luminance	0.1155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3523 #239BAD

analogous

#AD2356 #AD3523 #AD7A23

triadic

#AD3523 #23AD35 #3523AD

tetradic

#AD3523 #56AD23 #239BAD #7A23AD

square

#AD3523 #56AD23 #239BAD #7A23AD

split-complementary

#AD3523 #23AD7A #2356AD

monochromatic

#47160E #7A2519 #AD3523 #D64C37 #E1796A

Accessibility & contrast

On white

6.34

#AD3523 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#AD3523 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3523

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3523	#FFFFFF	#000000	##FFFFFF
##AD3523	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F20

Deuteranopia (green-blind)

#76691E

Tritanopia (blue-blind)

#BF0932

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad3523;
/* rgb */ color: rgb(173, 53, 35);
/* oklch */ color: oklch(50.5% 0.159 31.4);

Tailwind

colors: {
  custom: {
    50: '#ce735f',
    500: '#ad3523',
    950: '#000000',
  },
}

SCSS

$custom: #ad3523;
$custom-light: #ce735f;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3523",
  "rgb": {
    "r": 173,
    "g": 53,
    "b": 35
  },
  "hsl": {
    "h": 7.826,
    "s": 66.346,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50536,
    "c": 0.15922,
    "h": 31.4
  },
  "luminance": 0.11552
}

Semantic roles & 50–950 ramp

primary

#AD3523

secondary

#65BAC7

accent

#D3E93F

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150905

muted

#837B79

Preview Lab

Preview with #AD3523

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

Preview Lab → · Contrast checker → · Palette generator →