#90b1a3 - Longfellow color

This soft, muted teal leans toward a cool sage green with subtle blue-gray undertones. Medium-light and gently desaturated, it reads as calming and sophisticated rather than bright or vibrant. It evokes coastal mist, eucalyptus leaves, and a modern botanical palette, making it well suited to serene interiors, spas, and understated branding. Pairs beautifully with warm creams, light wood tones, deep navy, or charcoal for contrast, adding a tranquil, organic touch without feeling overly sweet or pastel.

#90b1a3 color RGB value is 144, 177, 163, and the CMYK value is 0.186, 0.00, 0.0791, 0.306. Alternative names for that color are: longfellow, gray, darkgray, summer green, green, darkgrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	144, 177, 163	rgb(144, 177, 163)
CMYK	0.186, 0.00, 0.0791, 0.306	-
sRGB	0.565, 0.694, 0.639	rgb(56.5%, 69.4%, 63.9%)
Adobe® 98 RGB compatible	0.600, 0.688, 0.636	color(a98-rgb, 0.6, 0.688, 0.636)
HCT	173, 19.4, 69.5	color(--hct, 173, 13.4%, 69.5%)
HSL	155, 17.5, 62.9	hsl(155, 17.5%, 62.9%)
HSV	155, 18.6, 69.4	color(--hsv, 155, 18.6%, 69.4%)
HWB	155, 56.5, 30.6	hwb(155, 56.5%, 30.6%)
Lab	69.4, -13.8, 3.27	lab(69.4%, -13.8, 3.27)
P3	0.590, 0.690, 0.642	color(display-p3, 0.59, 0.69, 0.642)
XYZ D50	0.343, 0.399, 0.308	color(xyz-d50, 0.343, 0.399, 0.308)