#A63B2F#A63B2F

#A63B2F is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.2% C 0.144 H 29.4°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#A63B2F
RGB	rgb(166, 59, 47)
HSL	hsl(6, 56%, 42%)
HSV	hsv(6, 72%, 65%)
CMYK	cmyk(0%, 64.5%, 71.7%, 34.9%)
CIE-LAB	lab(40.32, 43.35, 30.83)
CIE-LCH	lch(40.32, 53.20, 35.43°)
OKLab	oklab(50.21% 0.125 0.0705)
OKLCH	oklch(50.21% 0.144 29.4)
XYZ	xyz(17.8048, 11.4427, 3.9599)
Luminance	0.1144 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63B2F #2F9AA6

analogous

#A62F5F #A63B2F #A6772F

triadic

#A63B2F #2FA63B #3B2FA6

tetradic

#A63B2F #5FA62F #2F9AA6 #772FA6

square

#A63B2F #5FA62F #2F9AA6 #772FA6

split-complementary

#A63B2F #2FA677 #2F5FA6

monochromatic

#471914 #762A21 #A63B2F #CB5547 #D88177

Accessibility & contrast

On white

6.39

#A63B2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A63B2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63B2F

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63B2F	#FFFFFF	#000000	##FFFFFF
##A63B2F	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502D

Deuteranopia (green-blind)

#73682C

Tritanopia (blue-blind)

#B62139

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63b2f;
/* rgb */ color: rgb(166, 59, 47);
/* oklch */ color: oklch(50.2% 0.144 29.4);

Tailwind

colors: {
  custom: {
    50: '#c87668',
    500: '#a63b2f',
    950: '#000000',
  },
}

SCSS

$custom: #a63b2f;
$custom-light: #c87668;
$custom-dark: #000000;

JSON

{
  "hex": "#a63b2f",
  "rgb": {
    "r": 166,
    "g": 59,
    "b": 47
  },
  "hsl": {
    "h": 6.05,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50205,
    "c": 0.14354,
    "h": 29.4
  },
  "luminance": 0.1144
}

Semantic roles & 50–950 ramp

primary

#A63B2F

secondary

#70B8C1

accent

#D0DF49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63B2F

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

Preview Lab → · Contrast checker → · Palette generator →