#A63D34#A63D34

#A63D34 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.140 H 28.0°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#A63D34
RGB	rgb(166, 61, 52)
HSL	hsl(5, 52%, 43%)
HSV	hsv(5, 69%, 65%)
CMYK	cmyk(0%, 63.3%, 68.7%, 34.9%)
CIE-LAB	lab(40.73, 42.71, 28.37)
CIE-LCH	lch(40.73, 51.27, 33.59°)
OKLab	oklab(50.54% 0.124 0.066)
OKLCH	oklch(50.54% 0.14 28)
XYZ	xyz(18.0163, 11.6949, 4.5568)
Luminance	0.1169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D34 #349DA6

analogous

#A63464 #A63D34 #A67634

triadic

#A63D34 #34A63D #3D34A6

tetradic

#A63D34 #64A634 #349DA6 #7634A6

square

#A63D34 #64A634 #349DA6 #7634A6

split-complementary

#A63D34 #34A676 #3464A6

monochromatic

#491B17 #772C25 #A63D34 #C8594F #D7857E

Accessibility & contrast

On white

6.29

#A63D34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63D34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D34

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D34	#FFFFFF	#000000	##FFFFFF
##A63D34	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595232

Deuteranopia (green-blind)

#736831

Tritanopia (blue-blind)

#B6253C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63d34;
/* rgb */ color: rgb(166, 61, 52);
/* oklch */ color: oklch(50.5% 0.140 28.0);

Tailwind

colors: {
  custom: {
    50: '#c7776c',
    500: '#a63d34',
    950: '#000000',
  },
}

SCSS

$custom: #a63d34;
$custom-light: #c7776c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d34",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 52
  },
  "hsl": {
    "h": 4.737,
    "s": 52.294,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50537,
    "c": 0.14048,
    "h": 28
  },
  "luminance": 0.11692
}

Semantic roles & 50–950 ramp

primary

#A63D34

secondary

#76BAC0

accent

#D0DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140907

muted

#837B7A

Preview Lab

Preview with #A63D34

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

Preview Lab → · Contrast checker → · Palette generator →