#6B66E5#6B66E5

#6B66E5 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 58.2% C 0.187 H 280.6°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#6B66E5
RGB	rgb(107, 102, 229)
HSL	hsl(242, 71%, 65%)
HSV	hsv(242, 55%, 90%)
CMYK	cmyk(53.3%, 55.5%, 0%, 10.2%)
CIE-LAB	lab(49.84, 36.37, -64.15)
CIE-LCH	lch(49.84, 73.74, 299.55°)
OKLab	oklab(58.23% 0.0345 -0.1836)
OKLCH	oklch(58.23% 0.187 280.6)
XYZ	xyz(24.9532, 18.2842, 76.3279)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B66E5 #E0E566

analogous

#66A1E5 #6B66E5 #AA66E5

triadic

#6B66E5 #E56B66 #66E56B

tetradic

#6B66E5 #E566A1 #E0E566 #66E5AA

square

#6B66E5 #E566A1 #E0E566 #66E5AA

split-complementary

#6B66E5 #E5AA66 #A1E566

monochromatic

#241EB2 #3832DC #6B66E5 #9E9AEE #D0CFF7

Accessibility & contrast

On white

4.51

#6B66E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#6B66E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6B66E5

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B66E5	#FFFFFF	#000000	##000000
##6B66E5	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#067BE9

Deuteranopia (green-blind)

#0072E2

Tritanopia (blue-blind)

#34839C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6b66e5;
/* rgb */ color: rgb(107, 102, 229);
/* oklch */ color: oklch(58.2% 0.187 280.6);

Tailwind

colors: {
  custom: {
    50: '#9e92ee',
    500: '#6b66e5',
    950: '#000000',
  },
}

SCSS

$custom: #6b66e5;
$custom-light: #9e92ee;
$custom-dark: #000000;

JSON

{
  "hex": "#6b66e5",
  "rgb": {
    "r": 107,
    "g": 102,
    "b": 229
  },
  "hsl": {
    "h": 242.362,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.58227,
    "c": 0.18685,
    "h": 280.6
  },
  "luminance": 0.18286
}

Semantic roles & 50–950 ramp

primary

#6B66E5

secondary

#E7E9BE

accent

#D313CB

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0D16

muted

#7F7D84

Preview Lab

Preview with #6B66E5

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

Preview Lab → · Contrast checker → · Palette generator →