#15B5F4 Color
#15B5F4 is rgb(21, 181, 244) in RGB and hsl(197, 91%, 52%) in HSL. The closest CSS named color is DeepSkyBlue. Black text is most readable on this background.
#15B5F4
HEX
#15B5F4RGB
rgb(21, 181, 244)HSL
hsl(197, 91%, 52%)HSV
hsv(197, 91%, 96%)OKLCH
oklch(72.8% 0.147 233.2)CMYK
cmyk(91%, 26%, 0%, 4%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #15B5F4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.35:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text8.95:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #15B5F4 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #15B5F4, useful for hover states, backgrounds, and text variants.