#AD3A1B#AD3A1B

#AD3A1B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.0% C 0.156 H 35.5°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#AD3A1B
RGB	rgb(173, 58, 27)
HSL	hsl(13, 73%, 39%)
HSV	hsv(13, 84%, 68%)
CMYK	cmyk(0%, 66.5%, 84.4%, 32.2%)
CIE-LAB	lab(41.20, 45.51, 42.91)
CIE-LCH	lch(41.20, 62.55, 43.32°)
OKLab	oklab(51.04% 0.1272 0.0907)
OKLCH	oklch(51.04% 0.156 35.5)
XYZ	xyz(18.9467, 11.9923, 2.3538)
Luminance	0.1199 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3A1B #1B8EAD

analogous

#AD1B45 #AD3A1B #AD831B

triadic

#AD3A1B #1BAD3A #3A1BAD

tetradic

#AD3A1B #45AD1B #1B8EAD #831BAD

square

#AD3A1B #45AD1B #1B8EAD #831BAD

split-complementary

#AD3A1B #1BAD83 #1B45AD

monochromatic

#43170A #782813 #AD3A1B #DD4E28 #E67A5D

Accessibility & contrast

On white

6.18

#AD3A1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#AD3A1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3A1B

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3A1B	#FFFFFF	#000000	##FFFFFF
##AD3A1B	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5116

Deuteranopia (green-blind)

#786B15

Tritanopia (blue-blind)

#BF1634

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ad3a1b;
/* rgb */ color: rgb(173, 58, 27);
/* oklch */ color: oklch(51.0% 0.156 35.5);

Tailwind

colors: {
  custom: {
    50: '#ce765b',
    500: '#ad3a1b',
    950: '#000000',
  },
}

SCSS

$custom: #ad3a1b;
$custom-light: #ce765b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3a1b",
  "rgb": {
    "r": 173,
    "g": 58,
    "b": 27
  },
  "hsl": {
    "h": 12.74,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.51043,
    "c": 0.15618,
    "h": 35.5
  },
  "luminance": 0.11989
}

Semantic roles & 50–950 ramp

primary

#AD3A1B

secondary

#5AB2CA

accent

#C9F038

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD3A1B

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

Preview Lab → · Contrast checker → · Palette generator →