#664EA5#664EA5

#664EA5 is a mid, vivid violet. Relative luminance 0.110; OKLCH L 49.2% C 0.135 H 293.5°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#664EA5
RGB	rgb(102, 78, 165)
HSL	hsl(257, 36%, 48%)
HSV	hsv(257, 53%, 65%)
CMYK	cmyk(38.2%, 52.7%, 0%, 35.3%)
CIE-LAB	lab(39.56, 30.67, -43.67)
CIE-LCH	lch(39.56, 53.36, 305.08°)
OKLab	oklab(49.16% 0.0539 -0.1237)
OKLCH	oklch(49.16% 0.135 293.5)
XYZ	xyz(14.9936, 10.9898, 36.9213)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664EA5 #8DA54E

analogous

#4E61A5 #664EA5 #914EA5

triadic

#664EA5 #A5664E #4EA566

tetradic

#664EA5 #A54E61 #8DA54E #4EA591

square

#664EA5 #A54E61 #8DA54E #4EA591

split-complementary

#664EA5 #A5914E #61A54E

monochromatic

#332752 #4C3A7B #664EA5 #8873BD #AB9DD1

Accessibility & contrast

On white

6.57

#664EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#664EA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664EA5

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664EA5	#FFFFFF	#000000	##FFFFFF
##664EA5	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5EA8

Deuteranopia (green-blind)

#2F5CA3

Tritanopia (blue-blind)

#566072

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #664ea5;
/* rgb */ color: rgb(102, 78, 165);
/* oklch */ color: oklch(49.2% 0.135 293.5);

Tailwind

colors: {
  custom: {
    50: '#9580c0',
    500: '#664ea5',
    950: '#000000',
  },
}

SCSS

$custom: #664ea5;
$custom-light: #9580c0;
$custom-dark: #000000;

JSON

{
  "hex": "#664ea5",
  "rgb": {
    "r": 102,
    "g": 78,
    "b": 165
  },
  "hsl": {
    "h": 256.552,
    "s": 35.802,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49161,
    "c": 0.1349,
    "h": 293.5
  },
  "luminance": 0.1099
}

Semantic roles & 50–950 ramp

primary

#664EA5

secondary

#B1BD91

accent

#CC5CAD

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #664EA5

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

Preview Lab → · Contrast checker → · Palette generator →