#2138ab - Yuè Guāng Lán Blue color

A rich, medium-dark cobalt blue leaning toward indigo, this shade reads cool and vibrant with a strong blue core and a subtle violet undertone. It feels modern and authoritative—less deep than navy but more saturated than slate—offering clarity and crispness that suits tech, corporate, or nautical palettes. The color conveys confidence and calm with a faint electric energy; it pairs strikingly with bright white, warm gold or orange accents, and muted grays for balanced contrast.

#2138ab color RGB value is 33, 56, 171, and the CMYK value is 0.807, 0.673, 0.00, 0.329. Alternative names for that color are: yuè guāng lán blue, indigo, slateblue, governor bay, purple heart.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	33, 56, 171	rgb(33, 56, 171)
CMYK	0.807, 0.673, 0.00, 0.329	-
sRGB	0.129, 0.220, 0.671	rgb(12.9%, 22%, 67.1%)
Adobe® 98 RGB compatible	0.177, 0.230, 0.653	color(a98-rgb, 0.177, 0.23, 0.653)
HCT	279, 60.3, 29.6	color(--hct, 279, 41.6%, 29.6%)
HSL	230, 67.6, 40.0	hsl(230, 67.6%, 40%)
HSV	230, 80.7, 67.1	color(--hsv, 230, 80.7%, 67.1%)
HWB	230, 12.9, 32.9	hwb(230, 12.9%, 32.9%)
Lab	28.5, 26.4, -65.2	lab(28.5%, 26.4, -65.2)
P3	0.150, 0.217, 0.645	color(display-p3, 0.15, 0.217, 0.645)
XYZ D50	0.0801, 0.0564, 0.295	color(xyz-d50, 0.08, 0.056, 0.295)