#A63D40#A63D40

#A63D40 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.7% C 0.139 H 21.8°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#A63D40
RGB	rgb(166, 61, 64)
HSL	hsl(358, 46%, 45%)
HSV	hsv(358, 63%, 65%)
CMYK	cmyk(0%, 63.3%, 61.4%, 34.9%)
CIE-LAB	lab(40.92, 43.47, 21.34)
CIE-LCH	lch(40.92, 48.43, 26.15°)
OKLab	oklab(50.75% 0.1288 0.0516)
OKLCH	oklch(50.75% 0.139 21.8)
XYZ	xyz(18.3218, 11.8171, 6.1656)
Luminance	0.1182 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D40 #3DA6A3

analogous

#A63D75 #A63D40 #A66F3D

triadic

#A63D40 #40A63D #3D40A6

tetradic

#A63D40 #75A63D #3DA6A3 #6F3DA6

square

#A63D40 #75A63D #3DA6A3 #6F3DA6

split-complementary

#A63D40 #3DA66F #3D75A6

monochromatic

#4C1C1D #792D2F #A63D40 #C35D60 #D48A8C

Accessibility & contrast

On white

6.24

#A63D40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63D40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D40

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D40	#FFFFFF	#000000	##FFFFFF
##A63D40	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#72693D

Tritanopia (blue-blind)

#B6283F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63d40;
/* rgb */ color: rgb(166, 61, 64);
/* oklch */ color: oklch(50.7% 0.139 21.8);

Tailwind

colors: {
  custom: {
    50: '#c67874',
    500: '#a63d40',
    950: '#000000',
  },
}

SCSS

$custom: #a63d40;
$custom-light: #c67874;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d40",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 64
  },
  "hsl": {
    "h": 358.286,
    "s": 46.256,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50748,
    "c": 0.13873,
    "h": 21.8
  },
  "luminance": 0.11815
}

Semantic roles & 50–950 ramp

primary

#A63D40

secondary

#80BEBD

accent

#D6D252

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A63D40

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

Preview Lab → · Contrast checker → · Palette generator →