#A11B3B#A11B3B

#A11B3B is a mid, vivid red. Relative luminance 0.087; OKLCH L 46.4% C 0.167 H 14.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#A11B3B
RGB	rgb(161, 27, 59)
HSL	hsl(346, 71%, 37%)
HSV	hsv(346, 83%, 63%)
CMYK	cmyk(0%, 83.2%, 63.4%, 36.9%)
CIE-LAB	lab(35.36, 54.02, 17.05)
CIE-LCH	lch(35.36, 56.64, 17.51°)
OKLab	oklab(46.4% 0.1621 0.0414)
OKLCH	oklch(46.4% 0.167 14.3)
XYZ	xyz(15.8810, 8.6791, 4.9759)
Luminance	0.0868 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11B3B #1BA181

analogous

#A11B7E #A11B3B #A13E1B

triadic

#A11B3B #3BA11B #1B3BA1

tetradic

#A11B3B #7EA11B #1BA181 #3E1BA1

square

#A11B3B #7EA11B #1BA181 #3E1BA1

split-complementary

#A11B3B #1BA13E #1B7EA1

monochromatic

#380915 #6D1228 #A11B3B #D5244E #E25476

Accessibility & contrast

On white

7.68

#A11B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#A11B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11B3B

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11B3B	#FFFFFF	#000000	##FFFFFF
##A11B3B	1.00	7.68	2.74	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43423B

Deuteranopia (green-blind)

#655D37

Tritanopia (blue-blind)

#B10029

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #a11b3b;
/* rgb */ color: rgb(161, 27, 59);
/* oklch */ color: oklch(46.4% 0.167 14.3);

Tailwind

colors: {
  custom: {
    50: '#c46770',
    500: '#a11b3b',
    950: '#000000',
  },
}

SCSS

$custom: #a11b3b;
$custom-light: #c46770;
$custom-dark: #000000;

JSON

{
  "hex": "#a11b3b",
  "rgb": {
    "r": 161,
    "g": 27,
    "b": 59
  },
  "hsl": {
    "h": 345.672,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.46402,
    "c": 0.16735,
    "h": 14.3
  },
  "luminance": 0.08677
}

Semantic roles & 50–950 ramp

primary

#A11B3B

secondary

#52C5AA

accent

#EEC33A

background

#FDF6F6

surface

#FAEBEC

border

#D3C6C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A11B3B

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

Preview Lab → · Contrast checker → · Palette generator →