#A51F2D#A51F2D

#A51F2D is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.2% C 0.168 H 21.8°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#A51F2D
RGB	rgb(165, 31, 45)
HSL	hsl(354, 68%, 38%)
HSV	hsv(354, 81%, 65%)
CMYK	cmyk(0%, 81.2%, 72.7%, 35.3%)
CIE-LAB	lab(36.31, 53.34, 27.31)
CIE-LCH	lch(36.31, 59.93, 27.11°)
OKLab	oklab(47.17% 0.1563 0.0625)
OKLCH	oklch(47.17% 0.168 21.8)
XYZ	xyz(16.4826, 9.1714, 3.3845)
Luminance	0.0917 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51F2D #1FA597

analogous

#A51F70 #A51F2D #A5541F

triadic

#A51F2D #2DA51F #1F2DA5

tetradic

#A51F2D #70A51F #1FA597 #541FA5

square

#A51F2D #70A51F #1FA597 #541FA5

split-complementary

#A51F2D #1FA554 #1F70A5

monochromatic

#3E0C11 #71151F #A51F2D #D72A3C #E15E6B

Accessibility & contrast

On white

7.41

#A51F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#A51F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51F2D

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51F2D	#FFFFFF	#000000	##FFFFFF
##A51F2D	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)

#49432C

Deuteranopia (green-blind)

#6A6028

Tritanopia (blue-blind)

#B60026

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a51f2d;
/* rgb */ color: rgb(165, 31, 45);
/* oklch */ color: oklch(47.2% 0.168 21.8);

Tailwind

colors: {
  custom: {
    50: '#c86966',
    500: '#a51f2d',
    950: '#000000',
  },
}

SCSS

$custom: #a51f2d;
$custom-light: #c86966;
$custom-dark: #000000;

JSON

{
  "hex": "#a51f2d",
  "rgb": {
    "r": 165,
    "g": 31,
    "b": 45
  },
  "hsl": {
    "h": 353.731,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47172,
    "c": 0.16832,
    "h": 21.8
  },
  "luminance": 0.09169
}

Semantic roles & 50–950 ramp

primary

#A51F2D

secondary

#5BC5BA

accent

#EBD93D

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150705

muted

#837A7A

Preview Lab

Preview with #A51F2D

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

Preview Lab → · Contrast checker → · Palette generator →