#A11818#A11818

#A11818 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.171 H 27.4°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#A11818
RGB	rgb(161, 24, 24)
HSL	hsl(0, 74%, 36%)
HSV	hsv(0, 85%, 63%)
CMYK	cmyk(0%, 85.1%, 85.1%, 36.9%)
CIE-LAB	lab(34.60, 53.25, 37.59)
CIE-LCH	lch(34.60, 65.18, 35.21°)
OKLab	oklab(45.68% 0.1519 0.0788)
OKLCH	oklch(45.68% 0.171 27.4)
XYZ	xyz(15.1914, 8.2988, 1.6659)
Luminance	0.0830 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11818 #18A1A1

analogous

#A1185D #A11818 #A15D18

triadic

#A11818 #18A118 #1818A1

tetradic

#A11818 #5DA118 #18A1A1 #5D18A1

square

#A11818 #5DA118 #18A1A1 #5D18A1

split-complementary

#A11818 #18A15D #185DA1

monochromatic

#360808 #6C1010 #A11818 #D62020 #E54F4F

Accessibility & contrast

On white

7.90

#A11818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A11818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11818

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11818	#FFFFFF	#000000	##FFFFFF
##A11818	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463E16

Deuteranopia (green-blind)

#675C10

Tritanopia (blue-blind)

#B2001B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a11818;
/* rgb */ color: rgb(161, 24, 24);
/* oklch */ color: oklch(45.7% 0.171 27.4);

Tailwind

colors: {
  custom: {
    50: '#c76556',
    500: '#a11818',
    950: '#000000',
  },
}

SCSS

$custom: #a11818;
$custom-light: #c76556;
$custom-dark: #000000;

JSON

{
  "hex": "#a11818",
  "rgb": {
    "r": 161,
    "g": 24,
    "b": 24
  },
  "hsl": {
    "h": 0,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45679,
    "c": 0.17116,
    "h": 27.4
  },
  "luminance": 0.08296
}

Semantic roles & 50–950 ramp

primary

#A11818

secondary

#4EC7C7

accent

#F1F137

background

#FDF6F5

surface

#FBEBE9

border

#D4C6C5

text

#150603

muted

#837A78

Preview Lab

Preview with #A11818

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

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