#0066dd - Blue Ruin color

This is a vivid, medium-bright electric blue with a cool, slightly cyan-leaning tone. It reads as modern and energetic while retaining clarity and professionalism. Its high chroma makes it excellent for call-to-action buttons, links, and brand accents where visibility on white or light backgrounds is needed. The color evokes freshness, digital reliability, and oceanic clarity; it pairs well with neutral grays, deep navy for contrast, or warm oranges as complementary highlights to create lively, contemporary palettes.

#0066dd color RGB value is 0, 102, 221, and the CMYK value is 1.00, 0.538, 0.00, 0.133. Alternative names for that color are: blue ruin, indigo, royalblue, royal blue, blue.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	0, 102, 221	rgb(0, 102, 221)
CMYK	1.00, 0.538, 0.00, 0.133	-
sRGB	0.00, 0.400, 0.867	rgb(0%, 40%, 86.7%)
Adobe® 98 RGB compatible	0.226, 0.399, 0.850	color(a98-rgb, 0.226, 0.399, 0.85)
HCT	267, 65.5, 45.3	color(--hct, 267, 45.2%, 45.3%)
HSL	212, 100, 43.3	hsl(212, 100%, 43.3%)
HSV	212, 100, 86.7	color(--hsv, 212, 100%, 86.7%)
HWB	212, 0.00, 13.3	hwb(212, 0%, 13.3%)
Lab	44.1, 12.6, -68.9	lab(44.1%, 12.6, -68.9)
P3	0.166, 0.394, 0.837	color(display-p3, 0.166, 0.394, 0.837)
XYZ D50	0.155, 0.139, 0.529	color(xyz-d50, 0.155, 0.139, 0.529)