#A63C3D#A63C3D

#A63C3D is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.6% C 0.140 H 23.0°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#A63C3D
RGB	rgb(166, 60, 61)
HSL	hsl(359, 47%, 44%)
HSV	hsv(359, 64%, 65%)
CMYK	cmyk(0%, 63.9%, 63.3%, 34.9%)
CIE-LAB	lab(40.70, 43.72, 22.90)
CIE-LCH	lch(40.70, 49.35, 27.64°)
OKLab	oklab(50.56% 0.129 0.0549)
OKLCH	oklch(50.56% 0.14 23)
XYZ	xyz(18.1858, 11.6781, 5.7104)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C3D #3CA6A5

analogous

#A63C72 #A63C3D #A6703C

triadic

#A63C3D #3DA63C #3C3DA6

tetradic

#A63C3D #72A63C #3CA6A5 #703CA6

square

#A63C3D #72A63C #3CA6A5 #703CA6

split-complementary

#A63C3D #3CA670 #3C72A6

monochromatic

#4C1C1C #792C2C #A63C3D #C45B5C #D48889

Accessibility & contrast

On white

6.30

#A63C3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63C3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C3D

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C3D	#FFFFFF	#000000	##FFFFFF
##A63C3D	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523C

Deuteranopia (green-blind)

#72683A

Tritanopia (blue-blind)

#B6263D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63c3d;
/* rgb */ color: rgb(166, 60, 61);
/* oklch */ color: oklch(50.6% 0.140 23.0);

Tailwind

colors: {
  custom: {
    50: '#c77772',
    500: '#a63c3d',
    950: '#000000',
  },
}

SCSS

$custom: #a63c3d;
$custom-light: #c77772;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c3d",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 61
  },
  "hsl": {
    "h": 359.434,
    "s": 46.903,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50562,
    "c": 0.14019,
    "h": 23
  },
  "luminance": 0.11676
}

Semantic roles & 50–950 ramp

primary

#A63C3D

secondary

#7FBEBE

accent

#D7D551

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63C3D

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

Preview Lab → · Contrast checker → · Palette generator →