#664DD3#664DD3

#664DD3 is a mid, vivid violet. Relative luminance 0.128; OKLCH L 52.3% C 0.196 H 286.0°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#664DD3
RGB	rgb(102, 77, 211)
HSL	hsl(251, 60%, 56%)
HSV	hsv(251, 64%, 83%)
CMYK	cmyk(51.7%, 63.5%, 0%, 17.3%)
CIE-LAB	lab(42.51, 44.63, -65.81)
CIE-LCH	lch(42.51, 79.52, 304.14°)
OKLab	oklab(52.34% 0.0541 -0.1888)
OKLCH	oklch(52.34% 0.196 286)
XYZ	xyz(19.8877, 12.8347, 63.0448)
Luminance	0.1284 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664DD3 #BAD34D

analogous

#4D77D3 #664DD3 #A94DD3

triadic

#664DD3 #D3664D #4DD366

tetradic

#664DD3 #D34D77 #BAD34D #4DD3A9

square

#664DD3 #D34D77 #BAD34D #4DD3A9

split-complementary

#664DD3 #D3A94D #77D34D

monochromatic

#332185 #462DB6 #664DD3 #907EDF #BAAFEB

Accessibility & contrast

On white

5.89

#664DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#664DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664DD3

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664DD3	#FFFFFF	#000000	##FFFFFF
##664DD3	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D7

Deuteranopia (green-blind)

#0060D0

Tritanopia (blue-blind)

#3C6E89

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #664dd3;
/* rgb */ color: rgb(102, 77, 211);
/* oklch */ color: oklch(52.3% 0.196 286.0);

Tailwind

colors: {
  custom: {
    50: '#9b80e1',
    500: '#664dd3',
    950: '#000000',
  },
}

SCSS

$custom: #664dd3;
$custom-light: #9b80e1;
$custom-dark: #000000;

JSON

{
  "hex": "#664dd3",
  "rgb": {
    "r": 102,
    "g": 77,
    "b": 211
  },
  "hsl": {
    "h": 251.194,
    "s": 60.36,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52337,
    "c": 0.19638,
    "h": 286
  },
  "luminance": 0.12836
}

Semantic roles & 50–950 ramp

primary

#664DD3

secondary

#CFD9A2

accent

#E444C6

background

#FAF7FD

surface

#F3EEFB

border

#CDC9D4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #664DD3

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

Preview Lab → · Contrast checker → · Palette generator →