#664DF7#664DF7

#664DF7 is a mid, highly saturated blue. Relative luminance 0.148; OKLCH L 55.3% C 0.240 H 281.9°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#664DF7
RGB	rgb(102, 77, 247)
HSL	hsl(249, 91%, 64%)
HSV	hsv(249, 69%, 97%)
CMYK	cmyk(58.7%, 68.8%, 0%, 3.1%)
CIE-LAB	lab(45.42, 55.25, -81.47)
CIE-LCH	lch(45.42, 98.44, 304.14°)
OKLab	oklab(55.33% 0.0493 -0.2347)
OKLCH	oklch(55.33% 0.24 281.9)
XYZ	xyz(24.9166, 14.8462, 89.5303)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664DF7 #DEF74D

analogous

#4D89F7 #664DF7 #BB4DF7

triadic

#664DF7 #F7664D #4DF766

tetradic

#664DF7 #F74D89 #DEF74D #4DF7BB

square

#664DF7 #F74D89 #DEF74D #4DF7BB

split-complementary

#664DF7 #F7BB4D #89F74D

monochromatic

#2409C1 #3412F4 #664DF7 #9888FA #CBC2FC

Accessibility & contrast

On white

5.29

#664DF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#664DF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664DF7

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664DF7	#FFFFFF	#000000	##FFFFFF
##664DF7	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071FC

Deuteranopia (green-blind)

#0065F4

Tritanopia (blue-blind)

#007A9C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #664df7;
/* rgb */ color: rgb(102, 77, 247);
/* oklch */ color: oklch(55.3% 0.240 281.9);

Tailwind

colors: {
  custom: {
    50: '#a081fb',
    500: '#664df7',
    950: '#000000',
  },
}

SCSS

$custom: #664df7;
$custom-light: #a081fb;
$custom-dark: #000000;

JSON

{
  "hex": "#664df7",
  "rgb": {
    "r": 102,
    "g": 77,
    "b": 247
  },
  "hsl": {
    "h": 248.824,
    "s": 91.398,
    "l": 63.529
  },
  "oklch": {
    "l": 0.55333,
    "c": 0.23985,
    "h": 281.9
  },
  "luminance": 0.14848
}

Semantic roles & 50–950 ramp

primary

#664DF7

secondary

#E5EEB2

accent

#E600C4

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100A18

muted

#7F7C86

Preview Lab

Preview with #664DF7

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

Preview Lab → · Contrast checker → · Palette generator →