#6660EC#6660EC

#6660EC is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.3% C 0.204 H 279.7°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#6660EC
RGB	rgb(102, 96, 236)
HSL	hsl(243, 79%, 65%)
HSV	hsv(243, 59%, 93%)
CMYK	cmyk(56.8%, 59.3%, 0%, 7.5%)
CIE-LAB	lab(48.57, 41.19, -70.17)
CIE-LCH	lch(48.57, 81.36, 300.41°)
OKLab	oklab(57.35% 0.0344 -0.2015)
OKLCH	oklch(57.35% 0.204 279.7)
XYZ	xyz(24.7979, 17.2450, 81.3625)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6660EC #E6EC60

analogous

#60A0EC #6660EC #AC60EC

triadic

#6660EC #EC6660 #60EC66

tetradic

#6660EC #EC60A0 #E6EC60 #60ECAC

square

#6660EC #EC60A0 #E6EC60 #60ECAC

split-complementary

#6660EC #ECAC60 #A0EC60

monochromatic

#1D16BB #3129E5 #6660EC #9B97F3 #CFCDF9

Accessibility & contrast

On white

4.72

#6660EC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#6660EC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6660EC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6660EC	#FFFFFF	#000000	##FFFFFF
##6660EC	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F1

Deuteranopia (green-blind)

#006EE9

Tritanopia (blue-blind)

#16829D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #6660ec;
/* rgb */ color: rgb(102, 96, 236);
/* oklch */ color: oklch(57.3% 0.204 279.7);

Tailwind

colors: {
  custom: {
    50: '#9d8df3',
    500: '#6660ec',
    950: '#000000',
  },
}

SCSS

$custom: #6660ec;
$custom-light: #9d8df3;
$custom-dark: #000000;

JSON

{
  "hex": "#6660ec",
  "rgb": {
    "r": 102,
    "g": 96,
    "b": 236
  },
  "hsl": {
    "h": 242.571,
    "s": 78.652,
    "l": 65.098
  },
  "oklch": {
    "l": 0.57348,
    "c": 0.20443,
    "h": 279.7
  },
  "luminance": 0.17247
}

Semantic roles & 50–950 ramp

primary

#6660EC

secondary

#EAECBC

accent

#DB0BD2

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #6660EC

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

Preview Lab → · Contrast checker → · Palette generator →