#66BD00
A dark, vivid green closely aligning with Yellowgreen.
About #66BD00
At its core, #66BD00 is a dark and vivid hue. It is closely associated with the named CSS color Yellowgreen. Its digital footprint relies on 102 parts red, 189 parts green, and 0 parts blue light.
If you are designing for print, the four-color process is what matters most. This specific hue requires a mix of 46% C, 0% M, 100% Y, and 26% K. With a hue angle of 87.6 degrees, it sits comfortably in the green spectrum.
From a UX and accessibility standpoint, contrast is paramount. The calculated luminance score dictates that #000000 typography is the safest choice. Strict adherence to these ratios protects visually impaired users from unreadable interfaces.
Color Space Conversions
HEX#66BD00
RGB102, 189, 0
HSL87.6°, 100.0%, 37.1%
CMYK46%, 0%, 100%, 26%
HSV87.6°, 100.0%, 74.1%
LAB68.9, -51.4, 69.0
XYZ23.7, 39.2, 6.3
Decimal6733056
Color Harmonies
Tints, Shades & Tones
Tints (Adding White)
Shades (Adding Black)
WCAG Contrast Accessibility
2.37:1
Text on #FFFFFF
FAIL
8.84:1
Text on #000000
AAA
2.27:1
Text on #F8FAFC
FAIL
7.52:1
Text on #0F172A
AAA
CSS Implementation
.bg-color {
background-color: #66BD00;
}
.text-color {
color: #66BD00;
}
.border-color {
border: 2px solid #66BD00;
}