#A51F38#A51F38

#A51F38 is a mid, vivid red. Relative luminance 0.093; OKLCH L 47.4% C 0.168 H 17.0°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#A51F38
RGB	rgb(165, 31, 56)
HSL	hsl(349, 68%, 38%)
HSV	hsv(349, 81%, 65%)
CMYK	cmyk(0%, 81.2%, 66.1%, 35.3%)
CIE-LAB	lab(36.49, 53.91, 20.60)
CIE-LCH	lch(36.49, 57.71, 20.92°)
OKLab	oklab(47.37% 0.1606 0.0492)
OKLCH	oklch(47.37% 0.168 17)
XYZ	xyz(16.7227, 9.2674, 4.6489)
Luminance	0.0926 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A51F38 #1FA58C

analogous

#A51F7B #A51F38 #A5491F

triadic

#A51F38 #38A51F #1F38A5

tetradic

#A51F38 #7BA51F #1FA58C #491FA5

square

#A51F38 #7BA51F #1FA58C #491FA5

split-complementary

#A51F38 #1FA549 #1F7BA5

monochromatic

#3E0C15 #711527 #A51F38 #D72A4A #E15E76

Accessibility & contrast

On white

7.36

#A51F38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#A51F38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A51F38

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A51F38	#FFFFFF	#000000	##FFFFFF
##A51F38	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474438

Deuteranopia (green-blind)

#696034

Tritanopia (blue-blind)

#B5002A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a51f38;
/* rgb */ color: rgb(165, 31, 56);
/* oklch */ color: oklch(47.4% 0.168 17.0);

Tailwind

colors: {
  custom: {
    50: '#c7696e',
    500: '#a51f38',
    950: '#000000',
  },
}

SCSS

$custom: #a51f38;
$custom-light: #c7696e;
$custom-dark: #000000;

JSON

{
  "hex": "#a51f38",
  "rgb": {
    "r": 165,
    "g": 31,
    "b": 56
  },
  "hsl": {
    "h": 348.806,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47365,
    "c": 0.16795,
    "h": 17
  },
  "luminance": 0.09265
}

Semantic roles & 50–950 ramp

primary

#A51F38

secondary

#5BC5B1

accent

#EBCB3D

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A51F38

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

Preview Lab → · Contrast checker → · Palette generator →