#AD3F3F#AD3F3F

#AD3F3F is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.1% C 0.145 H 23.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#AD3F3F
RGB	rgb(173, 63, 63)
HSL	hsl(0, 47%, 46%)
HSV	hsv(0, 64%, 68%)
CMYK	cmyk(0%, 63.6%, 63.6%, 32.2%)
CIE-LAB	lab(42.46, 44.96, 24.17)
CIE-LCH	lch(42.46, 51.04, 28.26°)
OKLab	oklab(52.13% 0.1325 0.0578)
OKLCH	oklch(52.13% 0.145 23.6)
XYZ	xyz(19.9102, 12.8008, 6.1240)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3F3F #3FADAD

analogous

#AD3F76 #AD3F3F #AD763F

triadic

#AD3F3F #3FAD3F #3F3FAD

tetradic

#AD3F3F #76AD3F #3FADAD #763FAD

square

#AD3F3F #76AD3F #3FADAD #763FAD

split-complementary

#AD3F3F #3FAD76 #3F76AD

monochromatic

#531E1E #802F2F #AD3F3F #C66363 #D79090

Accessibility & contrast

On white

5.90

#AD3F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#AD3F3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3F3F

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3F3F	#FFFFFF	#000000	##FFFFFF
##AD3F3F	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553E

Deuteranopia (green-blind)

#776D3C

Tritanopia (blue-blind)

#BE2840

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #ad3f3f;
/* rgb */ color: rgb(173, 63, 63);
/* oklch */ color: oklch(52.1% 0.145 23.6);

Tailwind

colors: {
  custom: {
    50: '#cc7974',
    500: '#ad3f3f',
    950: '#000000',
  },
}

SCSS

$custom: #ad3f3f;
$custom-light: #cc7974;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3f3f",
  "rgb": {
    "r": 173,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 0,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52128,
    "c": 0.14451,
    "h": 23.6
  },
  "luminance": 0.12798
}

Semantic roles & 50–950 ramp

primary

#AD3F3F

secondary

#86C2C2

accent

#D6D652

background

#FDF7F7

surface

#FAEEED

border

#D3C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #AD3F3F

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

Preview Lab → · Contrast checker → · Palette generator →