#4d5778 - Alpha Centauri color

Imagine a deep, muted steel-blue that leans toward slate navy with cool, slightly desaturated indigo undertones. It feels like twilight over calm water—serious, refined, and quietly atmospheric. The hue reads sophisticated and grounding, well suited for elegant interfaces, branding, or interior accents where subtlety matters. It pairs beautifully with warm neutrals such as soft tan or copper and contrasts nicely with pale blush, cream, or metallic gold for a modern, composed palette.

#4d5778 color RGB value is 77, 87, 120, and the CMYK value is 0.358, 0.275, 0.00, 0.529. Alternative names for that color are: alpha centauri, gray, slategray, comet, midnight blue, indigo, slategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	77, 87, 120	rgb(77, 87, 120)
CMYK	0.358, 0.275, 0.00, 0.529	-
sRGB	0.302, 0.341, 0.471	rgb(30.2%, 34.1%, 47.1%)
Adobe® 98 RGB compatible	0.318, 0.343, 0.463	color(a98-rgb, 0.318, 0.343, 0.463)
HCT	272, 24.6, 37.4	color(--hct, 272, 17%, 37.4%)
HSL	226, 21.8, 38.6	hsl(226, 21.8%, 38.6%)
HSV	226, 35.8, 47.1	color(--hsv, 226, 35.8%, 47.1%)
HWB	226, 30.2, 52.9	hwb(226, 30.2%, 52.9%)
Lab	37.2, 2.57, -20.2	lab(37.2%, 2.57, -20.2)
P3	0.309, 0.340, 0.460	color(display-p3, 0.309, 0.34, 0.46)
XYZ D50	0.0959, 0.0962, 0.144	color(xyz-d50, 0.096, 0.096, 0.144)