#A63A2F#A63A2F

#A63A2F is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.1% C 0.145 H 29.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A63A2F
RGB	rgb(166, 58, 47)
HSL	hsl(6, 56%, 42%)
HSV	hsv(6, 72%, 65%)
CMYK	cmyk(0%, 65.1%, 71.7%, 34.9%)
CIE-LAB	lab(40.15, 43.80, 30.64)
CIE-LCH	lch(40.15, 53.45, 34.98°)
OKLab	oklab(50.08% 0.1264 0.0701)
OKLCH	oklch(50.08% 0.145 29)
XYZ	xyz(17.7539, 11.3408, 3.9429)
Luminance	0.1134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A2F #2F9BA6

analogous

#A62F60 #A63A2F #A6762F

triadic

#A63A2F #2FA63A #3A2FA6

tetradic

#A63A2F #60A62F #2F9BA6 #762FA6

square

#A63A2F #60A62F #2F9BA6 #762FA6

split-complementary

#A63A2F #2FA676 #2F60A6

monochromatic

#471914 #762921 #A63A2F #CB5347 #D88077

Accessibility & contrast

On white

6.43

#A63A2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A63A2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A2F

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A2F	#FFFFFF	#000000	##FFFFFF
##A63A2F	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502D

Deuteranopia (green-blind)

#73672C

Tritanopia (blue-blind)

#B61F38

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a2f;
/* rgb */ color: rgb(166, 58, 47);
/* oklch */ color: oklch(50.1% 0.145 29.0);

Tailwind

colors: {
  custom: {
    50: '#c87668',
    500: '#a63a2f',
    950: '#000000',
  },
}

SCSS

$custom: #a63a2f;
$custom-light: #c87668;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a2f",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 47
  },
  "hsl": {
    "h": 5.546,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50079,
    "c": 0.14455,
    "h": 29
  },
  "luminance": 0.11338
}

Semantic roles & 50–950 ramp

primary

#A63A2F

secondary

#70B9C1

accent

#D1DF49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63A2F

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

Preview Lab → · Contrast checker → · Palette generator →