#6660EB#6660EB

#6660EB is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.3% C 0.203 H 279.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#6660EB
RGB	rgb(102, 96, 235)
HSL	hsl(243, 78%, 65%)
HSV	hsv(243, 59%, 92%)
CMYK	cmyk(56.6%, 59.1%, 0%, 7.8%)
CIE-LAB	lab(48.49, 40.88, -69.72)
CIE-LCH	lch(48.49, 80.82, 300.38°)
OKLab	oklab(57.27% 0.0344 -0.2002)
OKLCH	oklch(57.27% 0.203 279.8)
XYZ	xyz(24.6530, 17.1870, 80.5995)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6660EB #E5EB60

analogous

#609FEB #6660EB #AC60EB

triadic

#6660EB #EB6660 #60EB66

tetradic

#6660EB #EB609F #E5EB60 #60EBAC

square

#6660EB #EB609F #E5EB60 #60EBAC

split-complementary

#6660EB #EBAC60 #9FEB60

monochromatic

#1E17B9 #322AE4 #6660EB #9A96F2 #CFCDF9

Accessibility & contrast

On white

4.73

#6660EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#6660EB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6660EB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6660EB	#FFFFFF	#000000	##FFFFFF
##6660EB	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F0

Deuteranopia (green-blind)

#006EE8

Tritanopia (blue-blind)

#18819C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #6660eb;
/* rgb */ color: rgb(102, 96, 235);
/* oklch */ color: oklch(57.3% 0.203 279.8);

Tailwind

colors: {
  custom: {
    50: '#9d8df2',
    500: '#6660eb',
    950: '#000000',
  },
}

SCSS

$custom: #6660eb;
$custom-light: #9d8df2;
$custom-dark: #000000;

JSON

{
  "hex": "#6660eb",
  "rgb": {
    "r": 102,
    "g": 96,
    "b": 235
  },
  "hsl": {
    "h": 242.59,
    "s": 77.654,
    "l": 64.902
  },
  "oklch": {
    "l": 0.57272,
    "c": 0.20314,
    "h": 279.8
  },
  "luminance": 0.17189
}

Semantic roles & 50–950 ramp

primary

#6660EB

secondary

#E9EBBC

accent

#DA0CD1

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #6660EB

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

Preview Lab → · Contrast checker → · Palette generator →