#666AFE#666AFE

#666AFE is a mid, highly saturated blue. Relative luminance 0.203; OKLCH L 60.4% C 0.215 H 276.6°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#666AFE
RGB	rgb(102, 106, 254)
HSL	hsl(238, 99%, 70%)
HSV	hsv(238, 60%, 100%)
CMYK	cmyk(59.8%, 58.3%, 0%, 0.4%)
CIE-LAB	lab(52.16, 40.94, -74.37)
CIE-LCH	lch(52.16, 84.89, 298.83°)
OKLab	oklab(60.41% 0.0249 -0.2138)
OKLCH	oklch(60.41% 0.215 276.6)
XYZ	xyz(28.5171, 20.2864, 96.1596)
Luminance	0.2029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666AFE #FEFA66

analogous

#66B6FE #666AFE #AE66FE

triadic

#666AFE #FE666A #6AFE66

tetradic

#666AFE #FE66B6 #FEFA66 #66FEAE

square

#666AFE #FE66B6 #FEFA66 #66FEAE

split-complementary

#666AFE #FEAE66 #B6FE66

monochromatic

#0208E8 #292FFE #666AFE #A3A5FE #E0E0FF

Accessibility & contrast

On white

4.15

#666AFE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#666AFE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666AFE

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666AFE	#FFFFFF	#000000	##000000
##666AFE	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0083FF

Deuteranopia (green-blind)

#0076FB

Tritanopia (blue-blind)

#008EAA

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #666afe;
/* rgb */ color: rgb(102, 106, 254);
/* oklch */ color: oklch(60.4% 0.215 276.6);

Tailwind

colors: {
  custom: {
    50: '#9f94ff',
    500: '#666afe',
    950: '#000000',
  },
}

SCSS

$custom: #666afe;
$custom-light: #9f94ff;
$custom-dark: #000000;

JSON

{
  "hex": "#666afe",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 254
  },
  "hsl": {
    "h": 238.421,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.60406,
    "c": 0.21524,
    "h": 276.6
  },
  "luminance": 0.20289
}

Semantic roles & 50–950 ramp

primary

#666AFE

secondary

#F5F4CA

accent

#DF00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #666AFE

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

Preview Lab → · Contrast checker → · Palette generator →