#6664F3#6664F3

#6664F3 is a mid, highly saturated blue. Relative luminance 0.184; OKLCH L 58.6% C 0.208 H 278.4°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#6664F3
RGB	rgb(102, 100, 243)
HSL	hsl(241, 86%, 67%)
HSV	hsv(241, 59%, 95%)
CMYK	cmyk(58%, 58.8%, 0%, 4.7%)
CIE-LAB	lab(49.99, 41.01, -71.78)
CIE-LCH	lch(49.99, 82.67, 299.74°)
OKLab	oklab(58.55% 0.0305 -0.2062)
OKLCH	oklch(58.55% 0.208 278.4)
XYZ	xyz(26.2092, 18.4083, 86.9487)
Luminance	0.1841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6664F3 #F1F364

analogous

#64AAF3 #6664F3 #AD64F3

triadic

#6664F3 #F36664 #64F366

tetradic

#6664F3 #F364AA #F1F364 #64F3AD

square

#6664F3 #F364AA #F1F364 #64F3AD

split-complementary

#6664F3 #F3AD64 #AAF364

monochromatic

#1210CD #2E2BEF #6664F3 #9E9DF7 #D6D6FC

Accessibility & contrast

On white

4.49

#6664F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#6664F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6664F3

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6664F3	#FFFFFF	#000000	##000000
##6664F3	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007DF8

Deuteranopia (green-blind)

#0071F0

Tritanopia (blue-blind)

#0087A2

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6664f3;
/* rgb */ color: rgb(102, 100, 243);
/* oklch */ color: oklch(58.6% 0.208 278.4);

Tailwind

colors: {
  custom: {
    50: '#9e90f8',
    500: '#6664f3',
    950: '#000000',
  },
}

SCSS

$custom: #6664f3;
$custom-light: #9e90f8;
$custom-dark: #000000;

JSON

{
  "hex": "#6664f3",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 243
  },
  "hsl": {
    "h": 240.839,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.58554,
    "c": 0.20847,
    "h": 278.4
  },
  "luminance": 0.1841
}

Semantic roles & 50–950 ramp

primary

#6664F3

secondary

#EFF0C3

accent

#E203DF

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #6664F3

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

Preview Lab → · Contrast checker → · Palette generator →