#666EEE#666EEE

#666EEE is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.9% C 0.189 H 276.4°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#666EEE
RGB	rgb(102, 110, 238)
HSL	hsl(236, 80%, 67%)
HSV	hsv(236, 57%, 93%)
CMYK	cmyk(57.1%, 53.8%, 0%, 6.7%)
CIE-LAB	lab(52.00, 33.45, -65.72)
CIE-LCH	lch(52.00, 73.74, 296.98°)
OKLab	oklab(59.94% 0.021 -0.1883)
OKLCH	oklch(59.94% 0.189 276.4)
XYZ	xyz(26.4831, 20.1478, 83.3657)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666EEE #EEE666

analogous

#66B2EE #666EEE #A266EE

triadic

#666EEE #EE666E #6EEE66

tetradic

#666EEE #EE66B2 #EEE666 #66EEA2

square

#666EEE #EE66B2 #EEE666 #66EEA2

split-complementary

#666EEE #EEA266 #B2EE66

monochromatic

#1620C4 #2F3AE8 #666EEE #9DA2F4 #D4D6FA

Accessibility & contrast

On white

4.17

#666EEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#666EEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666EEE

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666EEE	#FFFFFF	#000000	##000000
##666EEE	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1882F2

Deuteranopia (green-blind)

#0076EB

Tritanopia (blue-blind)

#078CA3

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #666eee;
/* rgb */ color: rgb(102, 110, 238);
/* oklch */ color: oklch(59.9% 0.189 276.4);

Tailwind

colors: {
  custom: {
    50: '#9c97f4',
    500: '#666eee',
    950: '#000000',
  },
}

SCSS

$custom: #666eee;
$custom-light: #9c97f4;
$custom-dark: #000000;

JSON

{
  "hex": "#666eee",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 238
  },
  "hsl": {
    "h": 236.471,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.59942,
    "c": 0.18949,
    "h": 276.4
  },
  "luminance": 0.2015
}

Semantic roles & 50–950 ramp

primary

#666EEE

secondary

#EEEBC2

accent

#D009DC

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #666EEE

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

Preview Lab → · Contrast checker → · Palette generator →