#A11B13#A11B13

#A11B13 is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.8% C 0.170 H 29.2°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#A11B13
RGB	rgb(161, 27, 19)
HSL	hsl(3, 79%, 35%)
HSV	hsv(3, 88%, 63%)
CMYK	cmyk(0%, 83.2%, 88.2%, 36.9%)
CIE-LAB	lab(34.82, 52.39, 40.35)
CIE-LCH	lch(34.82, 66.12, 37.60°)
OKLab	oklab(45.83% 0.1483 0.0828)
OKLCH	oklch(45.83% 0.17 29.2)
XYZ	xyz(15.2094, 8.4105, 1.4385)
Luminance	0.0841 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11B13 #1399A1

analogous

#A11352 #A11B13 #A16213

triadic

#A11B13 #13A11B #1B13A1

tetradic

#A11B13 #52A113 #1399A1 #6213A1

square

#A11B13 #52A113 #1399A1 #6213A1

split-complementary

#A11B13 #13A162 #1352A1

monochromatic

#340906 #6A120D #A11B13 #D82419 #E94F45

Accessibility & contrast

On white

7.83

#A11B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#A11B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11B13

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11B13	#FFFFFF	#000000	##FFFFFF
##A11B13	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F0F

Deuteranopia (green-blind)

#685C08

Tritanopia (blue-blind)

#B2001B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11b13;
/* rgb */ color: rgb(161, 27, 19);
/* oklch */ color: oklch(45.8% 0.170 29.2);

Tailwind

colors: {
  custom: {
    50: '#c76653',
    500: '#a11b13',
    950: '#000000',
  },
}

SCSS

$custom: #a11b13;
$custom-light: #c76653;
$custom-dark: #000000;

JSON

{
  "hex": "#a11b13",
  "rgb": {
    "r": 161,
    "g": 27,
    "b": 19
  },
  "hsl": {
    "h": 3.38,
    "s": 78.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.45834,
    "c": 0.16987,
    "h": 29.2
  },
  "luminance": 0.08408
}

Semantic roles & 50–950 ramp

primary

#A11B13

secondary

#46C2CA

accent

#EAF532

background

#FDF6F4

surface

#FBEBE7

border

#D4C6C3

text

#150702

muted

#837A78

Preview Lab

Preview with #A11B13

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

Preview Lab → · Contrast checker → · Palette generator →