#666DF5 Color

#666DF5 is rgb(102, 109, 245) in RGB and hsl(237, 88%, 68%) in HSL. The closest CSS named color is MediumSlateBlue. Black text is most readable on this background.

#666DF5

HEX#666DF5

RGBrgb(102, 109, 245)

HSLhsl(237, 88%, 68%)

HSVhsv(237, 58%, 96%)

OKLCHoklch(60.3% 0.2 276.4)

CMYKcmyk(58%, 56%, 0%, 4%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666DF5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.14:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.07:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666DF5 based on color wheel relationships. Click any swatch for its full breakdown.

Base#666DF5 Complementary#F5EE66 Analogous#66B5F5 Analogous#A666F5 Triadic#F5666D Triadic#6DF566

Tints & Shades

Lighter tints and darker shades of #666DF5, useful for hover states, backgrounds, and text variants.

Tints

#797FF6 #9196F8 #A4A8F9 #B7BAFA #CACDFC #E2E4FD

Shades

#3A44F2 #0F1BF0 #0D16C5 #091095 #070C69 #04073E

Use #666DF5 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex