#678bc9 - Royal Regatta color

A medium steel-blue with cool undertones, this color blends a soft periwinkle brightness with muted slate depth. It reads tranquil and dependable, evoking clear winter skies and calm coastal waters. Versatile for both modern and traditional palettes, it pairs well with warm creams, sandy beiges, and rich rust or terracotta for contrast, or with navy and charcoal for a monochromatic scheme. Ideal for branding, interiors, and web interfaces seeking a professional yet approachable feel.

#678bc9 color RGB value is 103, 139, 201, and the CMYK value is 0.488, 0.308, 0.00, 0.212. Alternative names for that color are: royal regatta, gray, steelblue, danube, indigo, violet.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	103, 139, 201	rgb(103, 139, 201)
CMYK	0.488, 0.308, 0.00, 0.212	-
sRGB	0.404, 0.545, 0.788	rgb(40.4%, 54.5%, 78.8%)
Adobe® 98 RGB compatible	0.447, 0.540, 0.775	color(a98-rgb, 0.447, 0.54, 0.775)
HCT	263, 40.9, 57.6	color(--hct, 263, 28.2%, 57.6%)
HSL	218, 47.6, 59.6	hsl(218, 47.6%, 59.6%)
HSV	218, 48.8, 78.8	color(--hsv, 218, 48.8%, 78.8%)
HWB	218, 40.4, 21.2	hwb(218, 40.4%, 21.2%)
Lab	57.1, 0.187, -36.6	lab(57.1%, 0.187, -36.6)
P3	0.433, 0.541, 0.769	color(display-p3, 0.433, 0.541, 0.769)
XYZ D50	0.242, 0.251, 0.444	color(xyz-d50, 0.242, 0.251, 0.444)