#01D521 Color
#01D521 is rgb(1, 213, 33) in RGB and hsl(129, 99%, 42%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#01D521
HEX
#01D521RGB
rgb(1, 213, 33)HSL
hsl(129, 99%, 42%)HSV
hsv(129, 100%, 84%)OKLCH
oklch(75.7% 0.251 143.3)CMYK
cmyk(100%, 0%, 85%, 16%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #01D521 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.99:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text10.54:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #01D521 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #01D521, useful for hover states, backgrounds, and text variants.