#A6403C#A6403C

#A6403C is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.1% C 0.136 H 25.3°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#A6403C
RGB	rgb(166, 64, 60)
HSL	hsl(2, 47%, 44%)
HSV	hsv(2, 64%, 65%)
CMYK	cmyk(0%, 61.4%, 63.9%, 34.9%)
CIE-LAB	lab(41.38, 41.80, 24.36)
CIE-LCH	lch(41.38, 48.38, 30.24°)
OKLab	oklab(51.07% 0.1228 0.0581)
OKLCH	oklch(51.07% 0.136 25.3)
XYZ	xyz(18.3766, 12.1024, 5.6424)
Luminance	0.1210 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6403C #3CA2A6

analogous

#A63C6D #A6403C #A6753C

triadic

#A6403C #3CA640 #403CA6

tetradic

#A6403C #6DA63C #3CA2A6 #753CA6

square

#A6403C #6DA63C #3CA2A6 #753CA6

split-complementary

#A6403C #3CA675 #3C6DA6

monochromatic

#4C1D1C #792F2C #A6403C #C45F5B #D48B88

Accessibility & contrast

On white

6.14

#A6403C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#A6403C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6403C

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6403C	#FFFFFF	#000000	##FFFFFF
##A6403C	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543B

Deuteranopia (green-blind)

#746A39

Tritanopia (blue-blind)

#B62B40

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #a6403c;
/* rgb */ color: rgb(166, 64, 60);
/* oklch */ color: oklch(51.1% 0.136 25.3);

Tailwind

colors: {
  custom: {
    50: '#c67971',
    500: '#a6403c',
    950: '#000000',
  },
}

SCSS

$custom: #a6403c;
$custom-light: #c67971;
$custom-dark: #000000;

JSON

{
  "hex": "#a6403c",
  "rgb": {
    "r": 166,
    "g": 64,
    "b": 60
  },
  "hsl": {
    "h": 2.264,
    "s": 46.903,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51067,
    "c": 0.13581,
    "h": 25.3
  },
  "luminance": 0.121
}

Semantic roles & 50–950 ramp

primary

#A6403C

secondary

#7FBCBE

accent

#D2D751

background

#FDF7F6

surface

#FAEEEC

border

#D3C9C7

text

#140907

muted

#837B7A

Preview Lab

Preview with #A6403C

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

Preview Lab → · Contrast checker → · Palette generator →