#A6303D#A6303D

#A6303D is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.153 H 18.8°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#A6303D
RGB	rgb(166, 48, 61)
HSL	hsl(353, 55%, 42%)
HSV	hsv(353, 71%, 65%)
CMYK	cmyk(0%, 71.1%, 63.3%, 34.9%)
CIE-LAB	lab(38.83, 48.80, 20.49)
CIE-LCH	lch(38.83, 52.93, 22.78°)
OKLab	oklab(49.16% 0.1451 0.0494)
OKLCH	oklch(49.16% 0.153 18.8)
XYZ	xyz(17.6269, 10.5603, 5.5241)
Luminance	0.1056 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6303D #30A699

analogous

#A63078 #A6303D #A65E30

triadic

#A6303D #3DA630 #303DA6

tetradic

#A6303D #78A630 #30A699 #5E30A6

square

#A6303D #78A630 #30A699 #5E30A6

split-complementary

#A6303D #30A65E #3078A6

monochromatic

#47151A #77222C #A6303D #CA4957 #D87883

Accessibility & contrast

On white

6.75

#A6303D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#A6303D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6303D

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6303D	#FFFFFF	#000000	##FFFFFF
##A6303D	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504C3D

Deuteranopia (green-blind)

#6E653A

Tritanopia (blue-blind)

#B60E36

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a6303d;
/* rgb */ color: rgb(166, 48, 61);
/* oklch */ color: oklch(49.2% 0.153 18.8);

Tailwind

colors: {
  custom: {
    50: '#c77172',
    500: '#a6303d',
    950: '#000000',
  },
}

SCSS

$custom: #a6303d;
$custom-light: #c77172;
$custom-dark: #000000;

JSON

{
  "hex": "#a6303d",
  "rgb": {
    "r": 166,
    "g": 48,
    "b": 61
  },
  "hsl": {
    "h": 353.39,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49164,
    "c": 0.1533,
    "h": 18.8
  },
  "luminance": 0.10558
}

Semantic roles & 50–950 ramp

primary

#A6303D

secondary

#71C0B8

accent

#DECE49

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140808

muted

#837B7B

Preview Lab

Preview with #A6303D

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

Preview Lab → · Contrast checker → · Palette generator →