#A51F2C#A51F2C

#A51F2C is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.2% C 0.168 H 22.2°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#A51F2C
RGB	rgb(165, 31, 44)
HSL	hsl(354, 68%, 38%)
HSV	hsv(354, 81%, 65%)
CMYK	cmyk(0%, 81.2%, 73.3%, 35.3%)
CIE-LAB	lab(36.30, 53.30, 27.91)
CIE-LCH	lch(36.30, 60.16, 27.64°)
OKLab	oklab(47.16% 0.1559 0.0636)
OKLCH	oklch(47.16% 0.168 22.2)
XYZ	xyz(16.4636, 9.1638, 3.2843)
Luminance	0.0916 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51F2C #1FA598

analogous

#A51F6F #A51F2C #A5551F

triadic

#A51F2C #2CA51F #1F2CA5

tetradic

#A51F2C #6FA51F #1FA598 #551FA5

square

#A51F2C #6FA51F #1FA598 #551FA5

split-complementary

#A51F2C #1FA555 #1F6FA5

monochromatic

#3E0C11 #71151E #A51F2C #D72A3B #E15E6A

Accessibility & contrast

On white

7.41

#A51F2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#A51F2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51F2C

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51F2C	#FFFFFF	#000000	##FFFFFF
##A51F2C	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49432B

Deuteranopia (green-blind)

#6A6027

Tritanopia (blue-blind)

#B60025

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a51f2c;
/* rgb */ color: rgb(165, 31, 44);
/* oklch */ color: oklch(47.2% 0.168 22.2);

Tailwind

colors: {
  custom: {
    50: '#c86965',
    500: '#a51f2c',
    950: '#000000',
  },
}

SCSS

$custom: #a51f2c;
$custom-light: #c86965;
$custom-dark: #000000;

JSON

{
  "hex": "#a51f2c",
  "rgb": {
    "r": 165,
    "g": 31,
    "b": 44
  },
  "hsl": {
    "h": 354.179,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47157,
    "c": 0.1684,
    "h": 22.2
  },
  "luminance": 0.09161
}

Semantic roles & 50–950 ramp

primary

#A51F2C

secondary

#5BC5BB

accent

#EBDA3D

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150705

muted

#837A7A

Preview Lab

Preview with #A51F2C

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

Preview Lab → · Contrast checker → · Palette generator →