#666BEE#666BEE

#666BEE is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.4% C 0.193 H 277.1°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#666BEE
RGB	rgb(102, 107, 238)
HSL	hsl(238, 80%, 67%)
HSV	hsv(238, 57%, 93%)
CMYK	cmyk(57.1%, 55%, 0%, 6.7%)
CIE-LAB	lab(51.28, 35.26, -66.89)
CIE-LCH	lch(51.28, 75.61, 297.80°)
OKLab	oklab(59.4% 0.0239 -0.1918)
OKLCH	oklch(59.4% 0.193 277.1)
XYZ	xyz(26.1649, 19.5113, 83.2596)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666BEE #EEE966

analogous

#66AFEE #666BEE #A566EE

triadic

#666BEE #EE666B #6BEE66

tetradic

#666BEE #EE66AF #EEE966 #66EEA5

square

#666BEE #EE66AF #EEE966 #66EEA5

split-complementary

#666BEE #EEA566 #AFEE66

monochromatic

#161CC4 #2F36E8 #666BEE #9DA0F4 #D4D6FA

Accessibility & contrast

On white

4.28

#666BEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#666BEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666BEE

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666BEE	#FFFFFF	#000000	##000000
##666BEE	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F2

Deuteranopia (green-blind)

#0075EB

Tritanopia (blue-blind)

#098AA2

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #666bee;
/* rgb */ color: rgb(102, 107, 238);
/* oklch */ color: oklch(59.4% 0.193 277.1);

Tailwind

colors: {
  custom: {
    50: '#9d95f4',
    500: '#666bee',
    950: '#000000',
  },
}

SCSS

$custom: #666bee;
$custom-light: #9d95f4;
$custom-dark: #000000;

JSON

{
  "hex": "#666bee",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 238
  },
  "hsl": {
    "h": 237.794,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.59402,
    "c": 0.19328,
    "h": 277.1
  },
  "luminance": 0.19513
}

Semantic roles & 50–950 ramp

primary

#666BEE

secondary

#EEECC2

accent

#D509DC

background

#FAF9FF

surface

#F4F1FE

border

#CECBD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #666BEE

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

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