#6664EB#6664EB

#6664EB is a mid, vivid blue. Relative luminance 0.179; OKLCH L 58.0% C 0.198 H 278.9°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#6664EB
RGB	rgb(102, 100, 235)
HSL	hsl(241, 77%, 66%)
HSV	hsv(241, 57%, 92%)
CMYK	cmyk(56.6%, 57.4%, 0%, 7.8%)
CIE-LAB	lab(49.42, 38.50, -68.22)
CIE-LCH	lch(49.42, 78.34, 299.44°)
OKLab	oklab(57.95% 0.0307 -0.1958)
OKLCH	oklch(57.95% 0.198 278.9)
XYZ	xyz(25.0273, 17.9356, 80.7242)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6664EB #E9EB64

analogous

#64A5EB #6664EB #A964EB

triadic

#6664EB #EB6664 #64EB66

tetradic

#6664EB #EB64A5 #E9EB64 #64EBA9

square

#6664EB #EB64A5 #E9EB64 #64EBA9

split-complementary

#6664EB #EBA964 #A5EB64

monochromatic

#1B18BC #302EE4 #6664EB #9C9AF2 #D1D0F9

Accessibility & contrast

On white

4.58

#6664EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#6664EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6664EB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6664EB	#FFFFFF	#000000	##000000
##6664EB	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BF0

Deuteranopia (green-blind)

#0070E8

Tritanopia (blue-blind)

#17849E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6664eb;
/* rgb */ color: rgb(102, 100, 235);
/* oklch */ color: oklch(58.0% 0.198 278.9);

Tailwind

colors: {
  custom: {
    50: '#9d90f2',
    500: '#6664eb',
    950: '#000000',
  },
}

SCSS

$custom: #6664eb;
$custom-light: #9d90f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6664eb",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 235
  },
  "hsl": {
    "h": 240.889,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.57953,
    "c": 0.19815,
    "h": 278.9
  },
  "luminance": 0.17937
}

Semantic roles & 50–950 ramp

primary

#6664EB

secondary

#EBECBF

accent

#D90CD6

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #6664EB

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

Preview Lab → · Contrast checker → · Palette generator →