#664DEE#664DEE

#664DEE is a mid, highly saturated blue. Relative luminance 0.143; OKLCH L 54.6% C 0.229 H 282.8°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#664DEE
RGB	rgb(102, 77, 238)
HSL	hsl(249, 83%, 62%)
HSV	hsv(249, 68%, 93%)
CMYK	cmyk(57.1%, 67.6%, 0%, 6.7%)
CIE-LAB	lab(44.67, 52.60, -77.66)
CIE-LCH	lch(44.67, 93.79, 304.11°)
OKLab	oklab(54.56% 0.0508 -0.2235)
OKLCH	oklch(54.56% 0.229 282.8)
XYZ	xyz(23.5612, 14.3041, 82.3918)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664DEE #D5EE4D

analogous

#4D85EE #664DEE #B74DEE

triadic

#664DEE #EE664D #4DEE66

tetradic

#664DEE #EE4D85 #D5EE4D #4DEEB7

square

#664DEE #EE4D85 #D5EE4D #4DEEB7

split-complementary

#664DEE #EEB74D #85EE4D

monochromatic

#2911B0 #3716E8 #664DEE #9685F3 #C6BDF9

Accessibility & contrast

On white

5.44

#664DEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#664DEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664DEE

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664DEE	#FFFFFF	#000000	##FFFFFF
##664DEE	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FF3

Deuteranopia (green-blind)

#0064EB

Tritanopia (blue-blind)

#167798

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #664dee;
/* rgb */ color: rgb(102, 77, 238);
/* oklch */ color: oklch(54.6% 0.229 282.8);

Tailwind

colors: {
  custom: {
    50: '#9f81f5',
    500: '#664dee',
    950: '#000000',
  },
}

SCSS

$custom: #664dee;
$custom-light: #9f81f5;
$custom-dark: #000000;

JSON

{
  "hex": "#664dee",
  "rgb": {
    "r": 102,
    "g": 77,
    "b": 238
  },
  "hsl": {
    "h": 249.317,
    "s": 82.564,
    "l": 61.765
  },
  "oklch": {
    "l": 0.54559,
    "c": 0.22923,
    "h": 282.8
  },
  "luminance": 0.14306
}

Semantic roles & 50–950 ramp

primary

#664DEE

secondary

#E0E9AE

accent

#DF07BD

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #664DEE

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

Preview Lab → · Contrast checker → · Palette generator →