#A51F2F#A51F2F

#A51F2F is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.2% C 0.168 H 21.0°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#A51F2F
RGB	rgb(165, 31, 47)
HSL	hsl(353, 68%, 38%)
HSV	hsv(353, 81%, 65%)
CMYK	cmyk(0%, 81.2%, 71.5%, 35.3%)
CIE-LAB	lab(36.34, 53.44, 26.10)
CIE-LCH	lch(36.34, 59.47, 26.03°)
OKLab	oklab(47.2% 0.1571 0.0602)
OKLCH	oklch(47.2% 0.168 21)
XYZ	xyz(16.5220, 9.1871, 3.5921)
Luminance	0.0919 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51F2F #1FA595

analogous

#A51F72 #A51F2F #A5521F

triadic

#A51F2F #2FA51F #1F2FA5

tetradic

#A51F2F #72A51F #1FA595 #521FA5

square

#A51F2F #72A51F #1FA595 #521FA5

split-complementary

#A51F2F #1FA552 #1F72A5

monochromatic

#3E0C12 #711520 #A51F2F #D72A3F #E15E6D

Accessibility & contrast

On white

7.40

#A51F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#A51F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51F2F

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51F2F	#FFFFFF	#000000	##FFFFFF
##A51F2F	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49432E

Deuteranopia (green-blind)

#6A602B

Tritanopia (blue-blind)

#B60027

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a51f2f;
/* rgb */ color: rgb(165, 31, 47);
/* oklch */ color: oklch(47.2% 0.168 21.0);

Tailwind

colors: {
  custom: {
    50: '#c86967',
    500: '#a51f2f',
    950: '#000000',
  },
}

SCSS

$custom: #a51f2f;
$custom-light: #c86967;
$custom-dark: #000000;

JSON

{
  "hex": "#a51f2f",
  "rgb": {
    "r": 165,
    "g": 31,
    "b": 47
  },
  "hsl": {
    "h": 352.836,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47204,
    "c": 0.1682,
    "h": 21
  },
  "luminance": 0.09185
}

Semantic roles & 50–950 ramp

primary

#A51F2F

secondary

#5BC5B8

accent

#EBD63D

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A51F2F

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

Preview Lab → · Contrast checker → · Palette generator →