#215399 - Summer Waters color

This rich, cool blue evokes the depth of a twilight sea, combining strong navy presence with subtle indigo warmth. It reads as professional and dependable, lending gravitas without feeling heavy, and brings a crisp clarity to designs. Paired with soft greys or warm ivory, it balances modern minimalism with timeless elegance; when contrasted with bright corals or warm golds, it gains vibrant drama. Ideal for branding, interiors, or digital interfaces seeking confident calm.

#215399 color RGB value is 33, 83, 153, and the CMYK value is 0.784, 0.458, 0.00, 0.400. Alternative names for that color are: summer waters, indigo, darkslateblue, st tropaz, denim.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	33, 83, 153	rgb(33, 83, 153)
CMYK	0.784, 0.458, 0.00, 0.400	-
sRGB	0.129, 0.325, 0.600	rgb(12.9%, 32.5%, 60%)
Adobe® 98 RGB compatible	0.219, 0.329, 0.586	color(a98-rgb, 0.219, 0.329, 0.586)
HCT	264, 46.6, 35.6	color(--hct, 264, 32.1%, 35.6%)
HSL	215, 64.5, 36.5	hsl(215, 64.5%, 36.5%)
HSV	215, 78.4, 60.0	color(--hsv, 215, 78.4%, 60%)
HWB	215, 12.9, 40.0	hwb(215, 12.9%, 40%)
Lab	34.9, 3.39, -44.0	lab(34.9%, 3.39, -44)
P3	0.182, 0.321, 0.581	color(display-p3, 0.182, 0.321, 0.581)
XYZ D50	0.0855, 0.0847, 0.236	color(xyz-d50, 0.086, 0.085, 0.236)