#99ff00 - Greenday color
A vivid chartreuse-green that reads like neon lime: an electric, high-luminance yellow-green with a crisp, citrusy brightness. It feels energetic, youthful, and attention-grabbing—like fresh lime zest or sunlit grass—making it ideal for accents, calls to action, or eco/tech branding. In large fields it can be intense or jarring, so it pairs well with deep neutrals (charcoal, navy) or clean white for balance, and with magenta or slate for high-contrast, modern palettes.
#99ff00 color RGB value is 153, 255, 0, and the CMYK value is 0.400, 0.00, 1.00, 0.00. Alternative names for that color are: greenday, yellow, chartreuse, electric lime.
Color Conversion
Name | Values | CSS |
|---|---|---|
RGB(0-255) | 153, 255, 0 | rgb(153, 255, 0) |
CMYK | 0.400, 0.00, 1.00, 0.00 | - |
sRGB | 0.600, 1.00, 0.00 | rgb(60%, 100%, 0%) |
Adobe® 98 RGB compatible | 0.738, 1.00, 0.234 | color(a98-rgb, 0.738, 1, 0.234) |
HCT | 133, 93.6, 90.9 | color(--hct, 133, 64.6%, 90.9%) |
HSL | 84.0, 100, 50.0 | hsl(84, 100%, 50%) |
HSV | 84.0, 100, 100 | color(--hsv, 84, 100%, 100%) |
HWB | 84.0, 0.00, 0.00 | hwb(84, 0%, 0%) |
Lab | 91.1, -53.7, 85.2 | lab(91.1%, -53.7, 85.2) |
P3 | 0.694, 0.990, 0.309 | color(display-p3, 0.694, 0.99, 0.309) |
XYZ D50 | 0.524, 0.788, 0.102 | color(xyz-d50, 0.524, 0.788, 0.102) |
