#A51C3E#A51C3E

#A51C3E is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.3% C 0.170 H 13.7°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#A51C3E
RGB	rgb(165, 28, 62)
HSL	hsl(345, 71%, 38%)
HSV	hsv(345, 83%, 65%)
CMYK	cmyk(0%, 83%, 62.4%, 35.3%)
CIE-LAB	lab(36.33, 55.07, 16.54)
CIE-LCH	lch(36.33, 57.50, 16.72°)
OKLab	oklab(47.28% 0.1656 0.0404)
OKLCH	oklch(47.28% 0.17 13.7)
XYZ	xyz(16.8036, 9.1802, 5.4437)
Luminance	0.0918 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51C3E #1CA583

analogous

#A51C83 #A51C3E #A53E1C

triadic

#A51C3E #3EA51C #1C3EA5

tetradic

#A51C3E #83A51C #1CA583 #3E1CA5

square

#A51C3E #83A51C #1CA583 #3E1CA5

split-complementary

#A51C3E #1CA53E #1C83A5

monochromatic

#3C0A17 #71132A #A51C3E #D92552 #E3597B

Accessibility & contrast

On white

7.41

#A51C3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#A51C3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51C3E

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51C3E	#FFFFFF	#000000	##FFFFFF
##A51C3E	1.00	7.41	2.84	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45443E

Deuteranopia (green-blind)

#685F3A

Tritanopia (blue-blind)

#B5002B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a51c3e;
/* rgb */ color: rgb(165, 28, 62);
/* oklch */ color: oklch(47.3% 0.170 13.7);

Tailwind

colors: {
  custom: {
    50: '#c76872',
    500: '#a51c3e',
    950: '#000000',
  },
}

SCSS

$custom: #a51c3e;
$custom-light: #c76872;
$custom-dark: #000000;

JSON

{
  "hex": "#a51c3e",
  "rgb": {
    "r": 165,
    "g": 28,
    "b": 62
  },
  "hsl": {
    "h": 345.109,
    "s": 70.984,
    "l": 37.843
  },
  "oklch": {
    "l": 0.47281,
    "c": 0.17044,
    "h": 13.7
  },
  "luminance": 0.09178
}

Semantic roles & 50–950 ramp

primary

#A51C3E

secondary

#56C6AB

accent

#EEC13A

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140708

muted

#837A7B

Preview Lab

Preview with #A51C3E

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

Preview Lab → · Contrast checker → · Palette generator →