#51A428 Color

#51A428 is rgb(81, 164, 40) in RGB and hsl(100, 61%, 40%) in HSL. The closest CSS named color is OliveDrab. Black text is most readable on this background.

#51A428

HEX#51A428

RGBrgb(81, 164, 40)

HSLhsl(100, 61%, 40%)

HSVhsv(100, 76%, 64%)

OKLCHoklch(64.2% 0.176 137.5)

CMYKcmyk(51%, 0%, 76%, 36%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #51A428 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text3.14:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text6.69:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #51A428 based on color wheel relationships. Click any swatch for its full breakdown.

Base#51A428 Complementary#7B28A4 Analogous#8FA428 Analogous#28A43D Triadic#2851A4 Triadic#A42851

Tints & Shades

Lighter tints and darker shades of #51A428, useful for hover states, backgrounds, and text variants.

Tints

#62C530 #7BD44E #94DC6F #ACE490 #C5ECB1 #E0F5D6

Shades

#479023 #3D7B1E #336719 #274E13 #1C390E #122509

Use #51A428 in Our Tools

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