#666BEC#666BEC

#666BEC is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.3% C 0.191 H 277.2°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#666BEC
RGB	rgb(102, 107, 236)
HSL	hsl(238, 78%, 66%)
HSV	hsv(238, 57%, 93%)
CMYK	cmyk(56.8%, 54.7%, 0%, 7.5%)
CIE-LAB	lab(51.15, 34.62, -65.99)
CIE-LCH	lch(51.15, 74.52, 297.69°)
OKLab	oklab(59.26% 0.0239 -0.1891)
OKLCH	oklch(59.26% 0.191 277.2)
XYZ	xyz(25.8727, 19.3945, 81.7207)
Luminance	0.1940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666BEC #ECE766

analogous

#66AEEC #666BEC #A466EC

triadic

#666BEC #EC666B #6BEC66

tetradic

#666BEC #EC66AE #ECE766 #66ECA4

square

#666BEC #EC66AE #ECE766 #66ECA4

split-complementary

#666BEC #ECA466 #AEEC66

monochromatic

#181EC0 #3036E5 #666BEC #9CA0F3 #D3D4FA

Accessibility & contrast

On white

4.30

#666BEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#666BEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666BEC

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666BEC	#FFFFFF	#000000	##000000
##666BEC	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A7FF0

Deuteranopia (green-blind)

#0074E9

Tritanopia (blue-blind)

#1189A1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #666bec;
/* rgb */ color: rgb(102, 107, 236);
/* oklch */ color: oklch(59.3% 0.191 277.2);

Tailwind

colors: {
  custom: {
    50: '#9c95f3',
    500: '#666bec',
    950: '#000000',
  },
}

SCSS

$custom: #666bec;
$custom-light: #9c95f3;
$custom-dark: #000000;

JSON

{
  "hex": "#666bec",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 236
  },
  "hsl": {
    "h": 237.761,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.59259,
    "c": 0.19063,
    "h": 277.2
  },
  "luminance": 0.19396
}

Semantic roles & 50–950 ramp

primary

#666BEC

secondary

#EDEBC1

accent

#D20BDA

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #666BEC

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

Preview Lab → · Contrast checker → · Palette generator →