#40D3ED Color
#40D3ED is rgb(64, 211, 237) in RGB and hsl(189, 83%, 59%) in HSL. The closest CSS named color is Turquoise. Black text is most readable on this background.
#40D3ED
HEX
#40D3EDRGB
rgb(64, 211, 237)HSL
hsl(189, 83%, 59%)HSV
hsv(189, 73%, 93%)OKLCH
oklch(80.2% 0.125 212.2)CMYK
cmyk(73%, 11%, 0%, 7%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #40D3ED background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.79:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.76:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #40D3ED based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #40D3ED, useful for hover states, backgrounds, and text variants.