#A11821#A11821

#A11821 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.8% C 0.170 H 24.7°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#A11821
RGB	rgb(161, 24, 33)
HSL	hsl(356, 74%, 36%)
HSV	hsv(356, 85%, 63%)
CMYK	cmyk(0%, 85.1%, 79.5%, 36.9%)
CIE-LAB	lab(34.69, 53.52, 32.56)
CIE-LCH	lch(34.69, 62.65, 31.32°)
OKLab	oklab(45.77% 0.1547 0.0711)
OKLCH	oklch(45.77% 0.17 24.7)
XYZ	xyz(15.3010, 8.3427, 2.2432)
Luminance	0.0834 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11821 #18A198

analogous

#A11866 #A11821 #A15418

triadic

#A11821 #21A118 #1821A1

tetradic

#A11821 #66A118 #18A198 #5418A1

square

#A11821 #66A118 #18A198 #5418A1

split-complementary

#A11821 #18A154 #1866A1

monochromatic

#36080B #6C1016 #A11821 #D6202C #E54F59

Accessibility & contrast

On white

7.87

#A11821 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A11821 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11821

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11821	#FFFFFF	#000000	##FFFFFF
##A11821	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463F20

Deuteranopia (green-blind)

#675C1B

Tritanopia (blue-blind)

#B2001D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11821;
/* rgb */ color: rgb(161, 24, 33);
/* oklch */ color: oklch(45.8% 0.170 24.7);

Tailwind

colors: {
  custom: {
    50: '#c6665d',
    500: '#a11821',
    950: '#000000',
  },
}

SCSS

$custom: #a11821;
$custom-light: #c6665d;
$custom-dark: #000000;

JSON

{
  "hex": "#a11821",
  "rgb": {
    "r": 161,
    "g": 24,
    "b": 33
  },
  "hsl": {
    "h": 356.058,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45773,
    "c": 0.17024,
    "h": 24.7
  },
  "luminance": 0.0834
}

Semantic roles & 50–950 ramp

primary

#A11821

secondary

#4EC7BF

accent

#F1E537

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A11821

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

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