#A63A34#A63A34

#A63A34 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.2% C 0.144 H 26.7°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#A63A34
RGB	rgb(166, 58, 52)
HSL	hsl(3, 52%, 43%)
HSV	hsv(3, 69%, 65%)
CMYK	cmyk(0%, 65.1%, 68.7%, 34.9%)
CIE-LAB	lab(40.22, 44.07, 27.76)
CIE-LCH	lch(40.22, 52.08, 32.21°)
OKLab	oklab(50.16% 0.1283 0.0646)
OKLCH	oklch(50.16% 0.144 26.7)
XYZ	xyz(17.8606, 11.3835, 4.5049)
Luminance	0.1138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A34 #34A0A6

analogous

#A63467 #A63A34 #A67334

triadic

#A63A34 #34A63A #3A34A6

tetradic

#A63A34 #67A634 #34A0A6 #7334A6

square

#A63A34 #67A634 #34A0A6 #7334A6

split-complementary

#A63A34 #34A673 #3467A6

monochromatic

#491917 #772A25 #A63A34 #C8564F #D7837E

Accessibility & contrast

On white

6.41

#A63A34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#A63A34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A34

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A34	#FFFFFF	#000000	##FFFFFF
##A63A34	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575033

Deuteranopia (green-blind)

#726731

Tritanopia (blue-blind)

#B62039

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a34;
/* rgb */ color: rgb(166, 58, 52);
/* oklch */ color: oklch(50.2% 0.144 26.7);

Tailwind

colors: {
  custom: {
    50: '#c7766b',
    500: '#a63a34',
    950: '#000000',
  },
}

SCSS

$custom: #a63a34;
$custom-light: #c7766b;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a34",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 52
  },
  "hsl": {
    "h": 3.158,
    "s": 52.294,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50155,
    "c": 0.14365,
    "h": 26.7
  },
  "luminance": 0.11381
}

Semantic roles & 50–950 ramp

primary

#A63A34

secondary

#76BCC0

accent

#D4DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63A34

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

Preview Lab → · Contrast checker → · Palette generator →