#666AF2#666AF2

#666AF2 is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.5% C 0.200 H 277.2°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#666AF2
RGB	rgb(102, 106, 242)
HSL	hsl(238, 84%, 67%)
HSV	hsv(238, 58%, 95%)
CMYK	cmyk(57.9%, 56.2%, 0%, 5.1%)
CIE-LAB	lab(51.31, 37.13, -69.07)
CIE-LCH	lch(51.31, 78.41, 298.26°)
OKLab	oklab(59.51% 0.025 -0.1982)
OKLCH	oklch(59.51% 0.2 277.2)
XYZ	xyz(26.6554, 19.5417, 86.3545)
Luminance	0.1954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666AF2 #F2EE66

analogous

#66B0F2 #666AF2 #A866F2

triadic

#666AF2 #F2666A #6AF266

tetradic

#666AF2 #F266B0 #F2EE66 #66F2A8

square

#666AF2 #F266B0 #F2EE66 #66F2A8

split-complementary

#666AF2 #F2A866 #B0F266

monochromatic

#1117CC #2E33ED #666AF2 #9EA1F7 #D7D8FC

Accessibility & contrast

On white

4.28

#666AF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#666AF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666AF2

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666AF2	#FFFFFF	#000000	##000000
##666AF2	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F7

Deuteranopia (green-blind)

#0074EF

Tritanopia (blue-blind)

#008AA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #666af2;
/* rgb */ color: rgb(102, 106, 242);
/* oklch */ color: oklch(59.5% 0.200 277.2);

Tailwind

colors: {
  custom: {
    50: '#9d94f7',
    500: '#666af2',
    950: '#000000',
  },
}

SCSS

$custom: #666af2;
$custom-light: #9d94f7;
$custom-dark: #000000;

JSON

{
  "hex": "#666af2",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 242
  },
  "hsl": {
    "h": 238.286,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.59514,
    "c": 0.19977,
    "h": 277.2
  },
  "luminance": 0.19544
}

Semantic roles & 50–950 ramp

primary

#666AF2

secondary

#F0EFC4

accent

#DB05E1

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #666AF2

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

Preview Lab → · Contrast checker → · Palette generator →