#664FE5#664FE5

#664FE5 is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 54.1% C 0.216 H 283.5°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#664FE5
RGB	rgb(102, 79, 229)
HSL	hsl(249, 74%, 60%)
HSV	hsv(249, 66%, 90%)
CMYK	cmyk(55.5%, 65.5%, 0%, 10.2%)
CIE-LAB	lab(44.34, 48.84, -73.11)
CIE-LCH	lch(44.34, 87.92, 303.74°)
OKLab	oklab(54.1% 0.0503 -0.2102)
OKLCH	oklch(54.1% 0.216 283.5)
XYZ	xyz(22.4140, 14.0725, 75.6487)
Luminance	0.1407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FE5 #CEE54F

analogous

#4F83E5 #664FE5 #B14FE5

triadic

#664FE5 #E5664F #4FE566

tetradic

#664FE5 #E54F83 #CEE54F #4FE5B1

square

#664FE5 #E54F83 #CEE54F #4FE5B1

split-complementary

#664FE5 #E5B14F #83E54F

monochromatic

#2D18A2 #3C20D7 #664FE5 #9484ED #C3BAF5

Accessibility & contrast

On white

5.50

#664FE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#664FE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FE5

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FE5	#FFFFFF	#000000	##FFFFFF
##664FE5	1.00	5.50	3.81	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EEA

Deuteranopia (green-blind)

#0064E2

Tritanopia (blue-blind)

#277593

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #664fe5;
/* rgb */ color: rgb(102, 79, 229);
/* oklch */ color: oklch(54.1% 0.216 283.5);

Tailwind

colors: {
  custom: {
    50: '#9d82ee',
    500: '#664fe5',
    950: '#000000',
  },
}

SCSS

$custom: #664fe5;
$custom-light: #9d82ee;
$custom-dark: #000000;

JSON

{
  "hex": "#664fe5",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 229
  },
  "hsl": {
    "h": 249.2,
    "s": 74.257,
    "l": 60.392
  },
  "oklch": {
    "l": 0.54095,
    "c": 0.21615,
    "h": 283.5
  },
  "luminance": 0.14074
}

Semantic roles & 50–950 ramp

primary

#664FE5

secondary

#DCE5AB

accent

#D60FB8

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664FE5

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

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