#A1E31C
Vivid Chartreuse
#A1E31C is the CSS named color "yellowgreen", an exact match. In RGB it breaks down to red 161, green 227, and blue 28 out of 255 each. In HSL terms that's a hue of 80°, 78% saturation, and 50% lightness: a mid-tone — usable as an accent for buttons, links, and icons against either a light or dark background.
Every format
| HEX | #a1e31c |
| RGB | rgb(161, 227, 28) |
| HSL | hsl(80° 78% 50%) |
| HSB | hsb(80° 88% 89%) |
| OKLCH | oklch(84% 0.214 128°) |
| OKLAB | oklab(84% -0.132 0.168) |
| LCH | lch(83% 86.6 118°) |
| CMYK | cmyk(29% 0% 88% 11%) |
Shades (darker)
#a1e31c · #8ccd00 · #78b700 · #64a100 · #518c00
Tints (lighter)
#a1e31c · #a6e828 · #abee31 · #b0f339 · #b5f941
Shades mix #A1E31C toward black in even steps, useful for hover and pressed states in a UI; tints mix it toward white, useful for subtle backgrounds and disabled states that still read as the same color family.
On white: 1.55:1 — fails
On black: 13.52:1 — AAA
Frequently asked
- What is #A1E31C in RGB?
- #A1E31C is rgb(161, 227, 28) — red 161, green 227, blue 28 out of 255 each.
- Does #A1E31C pass WCAG contrast on a white background?
- It has a contrast ratio of 1.55:1 against white, which fails for normal text.
- What's a good background color to pair with #A1E31C?
- Black text or a black background gives better contrast (13.52:1) than white (1.55:1).