#c9ff27 - Gǎn Lǎn Huáng Olive color

A vivid neon chartreuse, this bright yellow-green radiates energetic, zesty freshness reminiscent of spring grass and citrus peel. Intensely luminous and attention-grabbing, it reads as modern, playful, and slightly electric—excellent for accents, call-to-action buttons, signage, or sporty branding. It pairs strikingly with deep charcoal, navy, or muted purples for contrast, and harmonizes with softer pastels for a contemporary palette. Best used sparingly to preserve legibility and maximize visual impact.

#c9ff27 color RGB value is 201, 255, 39, and the CMYK value is 0.212, 0.00, 0.847, 0.00. Alternative names for that color are: gǎn lǎn huáng olive, yellow, greenyellow, electric lime, inch worm.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	201, 255, 39	rgb(201, 255, 39)
CMYK	0.212, 0.00, 0.847, 0.00	-
sRGB	0.788, 1.00, 0.153	rgb(78.8%, 100%, 15.3%)
Adobe® 98 RGB compatible	0.852, 1.00, 0.280	color(a98-rgb, 0.852, 1, 0.28)
HCT	125, 81.2, 93.5	color(--hct, 125, 56%, 93.5%)
HSL	75.0, 100, 57.6	hsl(75, 100%, 57.6%)
HSV	75.0, 84.7, 100	color(--hsv, 75, 84.7%, 100%)
HWB	75.0, 15.3, 0.00	hwb(75, 15.3%, 0%)
Lab	93.8, -36.5, 84.2	lab(93.8%, -36.5, 84.2)
P3	0.831, 0.994, 0.351	color(display-p3, 0.831, 0.994, 0.351)
XYZ D50	0.643, 0.848, 0.120	color(xyz-d50, 0.643, 0.848, 0.12)