#664EE7#664EE7

#664EE7 is a mid, highly saturated blue. Relative luminance 0.140; OKLCH L 54.1% C 0.220 H 283.4°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#664EE7
RGB	rgb(102, 78, 231)
HSL	hsl(249, 76%, 61%)
HSV	hsv(249, 66%, 91%)
CMYK	cmyk(55.8%, 66.2%, 0%, 9.4%)
CIE-LAB	lab(44.29, 49.99, -74.31)
CIE-LCH	lch(44.29, 89.56, 303.93°)
OKLab	oklab(54.11% 0.0509 -0.2137)
OKLCH	oklch(54.11% 0.22 283.4)
XYZ	xyz(22.6233, 14.0417, 77.1040)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664EE7 #CFE74E

analogous

#4E82E7 #664EE7 #B34EE7

triadic

#664EE7 #E7664E #4EE766

tetradic

#664EE7 #E74E82 #CFE74E #4EE7B3

square

#664EE7 #E74E82 #CFE74E #4EE7B3

split-complementary

#664EE7 #E7B34E #82E74E

monochromatic

#2D16A4 #3B1EDA #664EE7 #9584EE #C3BAF6

Accessibility & contrast

On white

5.51

#664EE7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#664EE7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664EE7

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664EE7	#FFFFFF	#000000	##FFFFFF
##664EE7	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DEC

Deuteranopia (green-blind)

#0064E4

Tritanopia (blue-blind)

#257594

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #664ee7;
/* rgb */ color: rgb(102, 78, 231);
/* oklch */ color: oklch(54.1% 0.220 283.4);

Tailwind

colors: {
  custom: {
    50: '#9d81f0',
    500: '#664ee7',
    950: '#000000',
  },
}

SCSS

$custom: #664ee7;
$custom-light: #9d81f0;
$custom-dark: #000000;

JSON

{
  "hex": "#664ee7",
  "rgb": {
    "r": 102,
    "g": 78,
    "b": 231
  },
  "hsl": {
    "h": 249.412,
    "s": 76.119,
    "l": 60.588
  },
  "oklch": {
    "l": 0.54113,
    "c": 0.21972,
    "h": 283.4
  },
  "luminance": 0.14043
}

Semantic roles & 50–950 ramp

primary

#664EE7

secondary

#DCE5AB

accent

#D80DB8

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664EE7

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

Preview Lab → · Contrast checker → · Palette generator →