#6660F1#6660F1

#6660F1 is a mid, highly saturated blue. Relative luminance 0.175; OKLCH L 57.7% C 0.211 H 279.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#6660F1
RGB	rgb(102, 96, 241)
HSL	hsl(242, 84%, 66%)
HSV	hsv(242, 60%, 95%)
CMYK	cmyk(57.7%, 60.2%, 0%, 5.5%)
CIE-LAB	lab(48.93, 42.74, -72.38)
CIE-LCH	lch(48.93, 84.06, 300.56°)
OKLab	oklab(57.73% 0.0342 -0.208)
OKLCH	oklch(57.73% 0.211 279.3)
XYZ	xyz(25.5345, 17.5396, 85.2420)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6660F1 #EBF160

analogous

#60A2F1 #6660F1 #AE60F1

triadic

#6660F1 #F16660 #60F166

tetradic

#6660F1 #F160A2 #EBF160 #60F1AE

square

#6660F1 #F160A2 #EBF160 #60F1AE

split-complementary

#6660F1 #F1AE60 #A2F160

monochromatic

#1911C5 #3028EC #6660F1 #9C98F6 #D2D0FB

Accessibility & contrast

On white

4.66

#6660F1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#6660F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6660F1

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6660F1	#FFFFFF	#000000	##FFFFFF
##6660F1	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AF6

Deuteranopia (green-blind)

#006FEE

Tritanopia (blue-blind)

#02839F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #6660f1;
/* rgb */ color: rgb(102, 96, 241);
/* oklch */ color: oklch(57.7% 0.211 279.3);

Tailwind

colors: {
  custom: {
    50: '#9e8df7',
    500: '#6660f1',
    950: '#000000',
  },
}

SCSS

$custom: #6660f1;
$custom-light: #9e8df7;
$custom-dark: #000000;

JSON

{
  "hex": "#6660f1",
  "rgb": {
    "r": 102,
    "g": 96,
    "b": 241
  },
  "hsl": {
    "h": 242.483,
    "s": 83.815,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57731,
    "c": 0.21079,
    "h": 279.3
  },
  "luminance": 0.17541
}

Semantic roles & 50–950 ramp

primary

#6660F1

secondary

#ECEEBF

accent

#E005D7

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #6660F1

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

Preview Lab → · Contrast checker → · Palette generator →