#A6374A#A6374A

#A6374A is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.2% C 0.146 H 14.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A6374A
RGB	rgb(166, 55, 74)
HSL	hsl(350, 50%, 43%)
HSV	hsv(350, 67%, 65%)
CMYK	cmyk(0%, 66.9%, 55.4%, 34.9%)
CIE-LAB	lab(40.14, 46.89, 14.09)
CIE-LCH	lch(40.14, 48.96, 16.72°)
OKLab	oklab(50.23% 0.1413 0.0353)
OKLCH	oklch(50.23% 0.146 14)
XYZ	xyz(18.3297, 11.3362, 7.7001)
Luminance	0.1133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6374A #37A693

analogous

#A63781 #A6374A #A65B37

triadic

#A6374A #4AA637 #374AA6

tetradic

#A6374A #81A637 #37A693 #5B37A6

square

#A6374A #81A637 #37A693 #5B37A6

split-complementary

#A6374A #37A65B #3781A6

monochromatic

#4A1921 #782836 #A6374A #C65467 #D68290

Accessibility & contrast

On white

6.43

#A6374A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A6374A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6374A

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6374A	#FFFFFF	#000000	##FFFFFF
##A6374A	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52504A

Deuteranopia (green-blind)

#6E6747

Tritanopia (blue-blind)

#B5223F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a6374a;
/* rgb */ color: rgb(166, 55, 74);
/* oklch */ color: oklch(50.2% 0.146 14.0);

Tailwind

colors: {
  custom: {
    50: '#c6747c',
    500: '#a6374a',
    950: '#000000',
  },
}

SCSS

$custom: #a6374a;
$custom-light: #c6747c;
$custom-dark: #000000;

JSON

{
  "hex": "#a6374a",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 74
  },
  "hsl": {
    "h": 349.73,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50228,
    "c": 0.1456,
    "h": 14
  },
  "luminance": 0.11334
}

Semantic roles & 50–950 ramp

primary

#A6374A

secondary

#7ABFB3

accent

#DAC24E

background

#FCF7F7

surface

#F9EDEE

border

#D2C8C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A6374A

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

Preview Lab → · Contrast checker → · Palette generator →