#664FBC#664FBC

#664FBC is a mid, vivid violet. Relative luminance 0.120; OKLCH L 50.9% C 0.164 H 288.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#664FBC
RGB	rgb(102, 79, 188)
HSL	hsl(253, 45%, 52%)
HSV	hsv(253, 58%, 74%)
CMYK	cmyk(45.7%, 58%, 0%, 26.3%)
CIE-LAB	lab(41.29, 36.69, -54.47)
CIE-LCH	lch(41.29, 65.67, 303.97°)
OKLab	oklab(50.92% 0.0533 -0.1554)
OKLCH	oklch(50.92% 0.164 288.9)
XYZ	xyz(17.3500, 12.0469, 48.9783)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FBC #A5BC4F

analogous

#4F6EBC #664FBC #9D4FBC

triadic

#664FBC #BC664F #4FBC66

tetradic

#664FBC #BC4F6E #A5BC4F #4FBC9D

square

#664FBC #BC4F6E #A5BC4F #4FBC9D

split-complementary

#664FBC #BC9D4F #6EBC4F

monochromatic

#362869 #4C3995 #664FBC #8D7BCD #B3A8DE

Accessibility & contrast

On white

6.16

#664FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#664FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FBC

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FBC	#FFFFFF	#000000	##FFFFFF
##664FBC	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C0

Deuteranopia (green-blind)

#055FBA

Tritanopia (blue-blind)

#4B677E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #664fbc;
/* rgb */ color: rgb(102, 79, 188);
/* oklch */ color: oklch(50.9% 0.164 288.9);

Tailwind

colors: {
  custom: {
    50: '#9881d1',
    500: '#664fbc',
    950: '#000000',
  },
}

SCSS

$custom: #664fbc;
$custom-light: #9881d1;
$custom-dark: #000000;

JSON

{
  "hex": "#664fbc",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 188
  },
  "hsl": {
    "h": 252.661,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.50918,
    "c": 0.16427,
    "h": 288.9
  },
  "luminance": 0.12048
}

Semantic roles & 50–950 ramp

primary

#664FBC

secondary

#C1CB9C

accent

#D553B9

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #664FBC

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

Preview Lab → · Contrast checker → · Palette generator →