#666BE2#666BE2

#666BE2 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.6% C 0.177 H 277.6°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#666BE2
RGB	rgb(102, 107, 226)
HSL	hsl(238, 68%, 64%)
HSV	hsv(238, 55%, 89%)
CMYK	cmyk(54.9%, 52.7%, 0%, 11.4%)
CIE-LAB	lab(50.49, 31.45, -61.43)
CIE-LCH	lch(50.49, 69.02, 297.11°)
OKLab	oklab(58.56% 0.0235 -0.1757)
OKLCH	oklch(58.56% 0.177 277.6)
XYZ	xyz(24.4603, 18.8295, 74.2823)
Luminance	0.1883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666BE2 #E2DD66

analogous

#66A9E2 #666BE2 #9F66E2

triadic

#666BE2 #E2666B #6BE266

tetradic

#666BE2 #E266A9 #E2DD66 #66E29F

square

#666BE2 #E266A9 #E2DD66 #66E29F

split-complementary

#666BE2 #E29F66 #A9E266

monochromatic

#2126AD #3339D8 #666BE2 #999DEC #CDCFF6

Accessibility & contrast

On white

4.41

#666BE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#666BE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666BE2

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666BE2	#FFFFFF	#000000	##000000
##666BE2	1.00	4.41	4.77	4.77
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#267DE6

Deuteranopia (green-blind)

#0673DF

Tritanopia (blue-blind)

#26869C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #666be2;
/* rgb */ color: rgb(102, 107, 226);
/* oklch */ color: oklch(58.6% 0.177 277.6);

Tailwind

colors: {
  custom: {
    50: '#9b95ec',
    500: '#666be2',
    950: '#000000',
  },
}

SCSS

$custom: #666be2;
$custom-light: #9b95ec;
$custom-dark: #000000;

JSON

{
  "hex": "#666be2",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 226
  },
  "hsl": {
    "h": 237.581,
    "s": 68.132,
    "l": 64.314
  },
  "oklch": {
    "l": 0.58557,
    "c": 0.17729,
    "h": 277.6
  },
  "luminance": 0.18831
}

Semantic roles & 50–950 ramp

primary

#666BE2

secondary

#E7E6BC

accent

#C915D0

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #666BE2

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

Preview Lab → · Contrast checker → · Palette generator →