#A51F36#A51F36

#A51F36 is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.3% C 0.168 H 17.9°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#A51F36
RGB	rgb(165, 31, 54)
HSL	hsl(350, 68%, 38%)
HSV	hsv(350, 81%, 65%)
CMYK	cmyk(0%, 81.2%, 67.3%, 35.3%)
CIE-LAB	lab(36.46, 53.79, 21.83)
CIE-LCH	lch(36.46, 58.05, 22.09°)
OKLab	oklab(47.33% 0.1598 0.0517)
OKLCH	oklch(47.33% 0.168 17.9)
XYZ	xyz(16.6747, 9.2482, 4.3964)
Luminance	0.0925 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51F36 #1FA58E

analogous

#A51F79 #A51F36 #A54B1F

triadic

#A51F36 #36A51F #1F36A5

tetradic

#A51F36 #79A51F #1FA58E #4B1FA5

square

#A51F36 #79A51F #1FA58E #4B1FA5

split-complementary

#A51F36 #1FA54B #1F79A5

monochromatic

#3E0C14 #711525 #A51F36 #D72A48 #E15E74

Accessibility & contrast

On white

7.37

#A51F36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#A51F36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51F36

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51F36	#FFFFFF	#000000	##FFFFFF
##A51F36	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484436

Deuteranopia (green-blind)

#696032

Tritanopia (blue-blind)

#B50029

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a51f36;
/* rgb */ color: rgb(165, 31, 54);
/* oklch */ color: oklch(47.3% 0.168 17.9);

Tailwind

colors: {
  custom: {
    50: '#c7696c',
    500: '#a51f36',
    950: '#000000',
  },
}

SCSS

$custom: #a51f36;
$custom-light: #c7696c;
$custom-dark: #000000;

JSON

{
  "hex": "#a51f36",
  "rgb": {
    "r": 165,
    "g": 31,
    "b": 54
  },
  "hsl": {
    "h": 349.701,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47327,
    "c": 0.16796,
    "h": 17.9
  },
  "luminance": 0.09246
}

Semantic roles & 50–950 ramp

primary

#A51F36

secondary

#5BC5B3

accent

#EBCD3D

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A51F36

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

Preview Lab → · Contrast checker → · Palette generator →