#646F90 Color

#646F90 is rgb(100, 111, 144) in RGB and hsl(225, 18%, 48%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#646F90

HEX#646F90

RGBrgb(100, 111, 144)

HSLhsl(225, 18%, 48%)

HSVhsv(225, 31%, 56%)

OKLCHoklch(54.5% 0.053 270.2)

CMYKcmyk(31%, 23%, 0%, 44%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #646F90 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.98:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.22:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #646F90 based on color wheel relationships. Click any swatch for its full breakdown.

Base#646F90 Complementary#908564 Analogous#648590 Analogous#6F6490 Triadic#90646F Triadic#6F9064

Tints & Shades

Lighter tints and darker shades of #646F90, useful for hover states, backgrounds, and text variants.

Tints

#7882A1 #8D95B0 #A2A9BE #BABFCF #CFD3DE #E4E6EC

Shades

#58617E #495169 #3D4357 #303545 #242733 #15171E

Use #646F90 in Our Tools

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