#664DF0#664DF0

#664DF0 is a mid, highly saturated blue. Relative luminance 0.144; OKLCH L 54.7% C 0.232 H 282.6°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#664DF0
RGB	rgb(102, 77, 240)
HSL	hsl(249, 84%, 62%)
HSV	hsv(249, 68%, 94%)
CMYK	cmyk(57.5%, 67.9%, 0%, 5.9%)
CIE-LAB	lab(44.83, 53.19, -78.51)
CIE-LCH	lch(44.83, 94.83, 304.12°)
OKLab	oklab(54.73% 0.0505 -0.226)
OKLCH	oklch(54.73% 0.232 282.6)
XYZ	xyz(23.8567, 14.4222, 83.9478)
Luminance	0.1442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664DF0 #D7F04D

analogous

#4D86F0 #664DF0 #B74DF0

triadic

#664DF0 #F0664D #4DF066

tetradic

#664DF0 #F04D86 #D7F04D #4DF0B7

square

#664DF0 #F04D86 #D7F04D #4DF0B7

split-complementary

#664DF0 #F0B74D #86F04D

monochromatic

#280FB3 #3515EB #664DF0 #9785F5 #C7BEFA

Accessibility & contrast

On white

5.41

#664DF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#664DF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664DF0

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664DF0	#FFFFFF	#000000	##FFFFFF
##664DF0	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FF5

Deuteranopia (green-blind)

#0064ED

Tritanopia (blue-blind)

#107899

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #664df0;
/* rgb */ color: rgb(102, 77, 240);
/* oklch */ color: oklch(54.7% 0.232 282.6);

Tailwind

colors: {
  custom: {
    50: '#9f81f6',
    500: '#664df0',
    950: '#000000',
  },
}

SCSS

$custom: #664df0;
$custom-light: #9f81f6;
$custom-dark: #000000;

JSON

{
  "hex": "#664df0",
  "rgb": {
    "r": 102,
    "g": 77,
    "b": 240
  },
  "hsl": {
    "h": 249.202,
    "s": 84.456,
    "l": 62.157
  },
  "oklch": {
    "l": 0.5473,
    "c": 0.2316,
    "h": 282.6
  },
  "luminance": 0.14424
}

Semantic roles & 50–950 ramp

primary

#664DF0

secondary

#E1EAAE

accent

#E105BF

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664DF0

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

Preview Lab → · Contrast checker → · Palette generator →