#A63C2D#A63C2D

#A63C2D is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.3% C 0.143 H 30.7°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#A63C2D
RGB	rgb(166, 60, 45)
HSL	hsl(7, 57%, 41%)
HSV	hsv(7, 73%, 65%)
CMYK	cmyk(0%, 63.9%, 72.9%, 34.9%)
CIE-LAB	lab(40.46, 42.79, 32.16)
CIE-LCH	lch(40.46, 53.53, 36.93°)
OKLab	oklab(50.31% 0.1229 0.073)
OKLCH	oklch(50.31% 0.143 30.7)
XYZ	xyz(17.8173, 11.5307, 3.7695)
Luminance	0.1153 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C2D #2D97A6

analogous

#A62D5B #A63C2D #A6792D

triadic

#A63C2D #2DA63C #3C2DA6

tetradic

#A63C2D #5BA62D #2D97A6 #792DA6

square

#A63C2D #5BA62D #2D97A6 #792DA6

split-complementary

#A63C2D #2DA679 #2D5BA6

monochromatic

#461913 #762B20 #A63C2D #CC5544 #D98174

Accessibility & contrast

On white

6.35

#A63C2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#A63C2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C2D

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C2D	#FFFFFF	#000000	##FFFFFF
##A63C2D	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512B

Deuteranopia (green-blind)

#73682A

Tritanopia (blue-blind)

#B62239

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c2d;
/* rgb */ color: rgb(166, 60, 45);
/* oklch */ color: oklch(50.3% 0.143 30.7);

Tailwind

colors: {
  custom: {
    50: '#c87766',
    500: '#a63c2d',
    950: '#000000',
  },
}

SCSS

$custom: #a63c2d;
$custom-light: #c87766;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c2d",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 45
  },
  "hsl": {
    "h": 7.438,
    "s": 57.346,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50305,
    "c": 0.14293,
    "h": 30.7
  },
  "luminance": 0.11528
}

Semantic roles & 50–950 ramp

primary

#A63C2D

secondary

#6EB7C1

accent

#CEE147

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63C2D

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

Preview Lab → · Contrast checker → · Palette generator →