#21FD28 Color
#21FD28 is rgb(33, 253, 40) in RGB and hsl(122, 98%, 56%) in HSL. The closest CSS named color is Lime. Black text is most readable on this background.
#21FD28
HEX
#21FD28RGB
rgb(33, 253, 40)HSL
hsl(122, 98%, 56%)HSV
hsv(122, 87%, 99%)OKLCH
oklch(86.4% 0.283 142.8)CMYK
cmyk(87%, 0%, 84%, 1%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #21FD28 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.39:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text15.15:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #21FD28 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #21FD28, useful for hover states, backgrounds, and text variants.