#A6364B#A6364B

#A6364B is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.1% C 0.147 H 13.1°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#A6364B
RGB	rgb(166, 54, 75)
HSL	hsl(349, 51%, 43%)
HSV	hsv(349, 67%, 65%)
CMYK	cmyk(0%, 67.5%, 54.8%, 34.9%)
CIE-LAB	lab(40.01, 47.39, 13.28)
CIE-LCH	lch(40.01, 49.22, 15.65°)
OKLab	oklab(50.14% 0.143 0.0334)
OKLCH	oklch(50.14% 0.147 13.1)
XYZ	xyz(18.3167, 11.2558, 7.8633)
Luminance	0.1125 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6364B #36A691

analogous

#A63683 #A6364B #A65936

triadic

#A6364B #4BA636 #364BA6

tetradic

#A6364B #83A636 #36A691 #5936A6

square

#A6364B #83A636 #36A691 #5936A6

split-complementary

#A6364B #36A659 #3683A6

monochromatic

#4A1821 #782736 #A6364B #C75268 #D68191

Accessibility & contrast

On white

6.46

#A6364B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#A6364B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6364B

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6364B	#FFFFFF	#000000	##FFFFFF
##A6364B	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51504B

Deuteranopia (green-blind)

#6E6748

Tritanopia (blue-blind)

#B5203E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a6364b;
/* rgb */ color: rgb(166, 54, 75);
/* oklch */ color: oklch(50.1% 0.147 13.1);

Tailwind

colors: {
  custom: {
    50: '#c6747d',
    500: '#a6364b',
    950: '#000000',
  },
}

SCSS

$custom: #a6364b;
$custom-light: #c6747d;
$custom-dark: #000000;

JSON

{
  "hex": "#a6364b",
  "rgb": {
    "r": 166,
    "g": 54,
    "b": 75
  },
  "hsl": {
    "h": 348.75,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50136,
    "c": 0.14685,
    "h": 13.1
  },
  "luminance": 0.11253
}

Semantic roles & 50–950 ramp

primary

#A6364B

secondary

#79BFB2

accent

#DAC04D

background

#FCF7F7

surface

#F9EDEE

border

#D2C8C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A6364B

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

Preview Lab → · Contrast checker → · Palette generator →