#AD2B1F#AD2B1F

#AD2B1F is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.5% C 0.168 H 29.6°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#AD2B1F
RGB	rgb(173, 43, 31)
HSL	hsl(5, 70%, 40%)
HSV	hsv(5, 82%, 68%)
CMYK	cmyk(0%, 75.1%, 82.1%, 32.2%)
CIE-LAB	lab(39.09, 51.49, 38.93)
CIE-LCH	lch(39.09, 64.55, 37.09°)
OKLab	oklab(49.47% 0.1464 0.0833)
OKLCH	oklch(49.47% 0.168 29.6)
XYZ	xyz(18.3470, 10.7138, 2.3980)
Luminance	0.1071 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2B1F #1FA1AD

analogous

#AD1F5A #AD2B1F #AD721F

triadic

#AD2B1F #1FAD2B #2B1FAD

tetradic

#AD2B1F #5AAD1F #1FA1AD #721FAD

square

#AD2B1F #5AAD1F #1FA1AD #721FAD

split-complementary

#AD2B1F #1FAD72 #1F5AAD

monochromatic

#45110C #791E16 #AD2B1F #DA3E2F #E36E63

Accessibility & contrast

On white

6.68

#AD2B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#AD2B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2B1F

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2B1F	#FFFFFF	#000000	##FFFFFF
##AD2B1F	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1C

Deuteranopia (green-blind)

#736618

Tritanopia (blue-blind)

#BF002A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad2b1f;
/* rgb */ color: rgb(173, 43, 31);
/* oklch */ color: oklch(49.5% 0.168 29.6);

Tailwind

colors: {
  custom: {
    50: '#cf6f5c',
    500: '#ad2b1f',
    950: '#000000',
  },
}

SCSS

$custom: #ad2b1f;
$custom-light: #cf6f5c;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2b1f",
  "rgb": {
    "r": 173,
    "g": 43,
    "b": 31
  },
  "hsl": {
    "h": 5.07,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.49473,
    "c": 0.16847,
    "h": 29.6
  },
  "luminance": 0.10711
}

Semantic roles & 50–950 ramp

primary

#AD2B1F

secondary

#60BFC8

accent

#DDEC3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #AD2B1F

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

Preview Lab → · Contrast checker → · Palette generator →