#A11F1F#A11F1F

#A11F1F is a mid, vivid red. Relative luminance 0.087; OKLCH L 46.2% C 0.166 H 26.7°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#A11F1F
RGB	rgb(161, 31, 31)
HSL	hsl(0, 68%, 38%)
HSV	hsv(0, 81%, 63%)
CMYK	cmyk(0%, 80.7%, 80.7%, 36.9%)
CIE-LAB	lab(35.32, 51.60, 34.38)
CIE-LCH	lch(35.32, 62.01, 33.68°)
OKLab	oklab(46.23% 0.1482 0.0745)
OKLCH	oklch(46.23% 0.166 26.7)
XYZ	xyz(15.4371, 8.6585, 2.1545)
Luminance	0.0866 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11F1F #1FA1A1

analogous

#A11F60 #A11F1F #A1601F

triadic

#A11F1F #1FA11F #1F1FA1

tetradic

#A11F1F #60A11F #1FA1A1 #601FA1

square

#A11F1F #60A11F #1FA1A1 #601FA1

split-complementary

#A11F1F #1FA160 #1F60A1

monochromatic

#3A0B0B #6E1515 #A11F1F #D42929 #DF5B5B

Accessibility & contrast

On white

7.69

#A11F1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#A11F1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11F1F

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11F1F	#FFFFFF	#000000	##FFFFFF
##A11F1F	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49411D

Deuteranopia (green-blind)

#685D19

Tritanopia (blue-blind)

#B20021

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #a11f1f;
/* rgb */ color: rgb(161, 31, 31);
/* oklch */ color: oklch(46.2% 0.166 26.7);

Tailwind

colors: {
  custom: {
    50: '#c6685b',
    500: '#a11f1f',
    950: '#000000',
  },
}

SCSS

$custom: #a11f1f;
$custom-light: #c6685b;
$custom-dark: #000000;

JSON

{
  "hex": "#a11f1f",
  "rgb": {
    "r": 161,
    "g": 31,
    "b": 31
  },
  "hsl": {
    "h": 0,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46234,
    "c": 0.16582,
    "h": 26.7
  },
  "luminance": 0.08656
}

Semantic roles & 50–950 ramp

primary

#A11F1F

secondary

#58C4C4

accent

#EBEB3D

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A11F1F

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

Preview Lab → · Contrast checker → · Palette generator →