#515b87 - Marlin color

A muted, dusky slate blue that leans toward cool indigo with soft gray undertones. It evokes a late-evening sky after rain—calm, contemplative, and slightly smoky. The tone feels sophisticated and understated rather than bright or saturated, offering a serene, stabilizing presence. It pairs elegantly with warm neutrals or metallics and works well for backgrounds, textiles, or interiors seeking subtle depth. Overall, the color reads refined, introspective, and quietly dramatic without overwhelming.

#515b87 color RGB value is 81, 91, 135, and the CMYK value is 0.400, 0.326, 0.00, 0.471. Alternative names for that color are: marlin, gray, steelblue, east bay, midnight blue, indigo.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	81, 91, 135	rgb(81, 91, 135)
CMYK	0.400, 0.326, 0.00, 0.471	-
sRGB	0.318, 0.357, 0.529	rgb(31.8%, 35.7%, 52.9%)
Adobe® 98 RGB compatible	0.332, 0.358, 0.519	color(a98-rgb, 0.332, 0.358, 0.519)
HCT	276, 30.3, 39.5	color(--hct, 276, 20.9%, 39.5%)
HSL	229, 25.0, 42.4	hsl(229, 25%, 42.4%)
HSV	229, 40.0, 52.9	color(--hsv, 229, 40%, 52.9%)
HWB	229, 31.8, 47.1	hwb(229, 31.8%, 47.1%)
Lab	39.2, 5.00, -26.1	lab(39.2%, 5, -26.1)
P3	0.325, 0.356, 0.516	color(display-p3, 0.325, 0.356, 0.516)
XYZ D50	0.111, 0.108, 0.184	color(xyz-d50, 0.111, 0.108, 0.184)