#637985 - Tool Blue color

A subdued slate blue-green with a cool, steely undertone. It reads calm and composed, like the surface of a deep coastal tide under overcast skies. Muted and slightly desaturated, it feels professional and grounded—suitable for interfaces, branding, or interiors seeking restrained sophistication. Pairs beautifully with warm woods, soft creams, brass accents, and charcoal for contrast. Conveys stability, quiet confidence, and a modern, slightly industrial elegance without feeling harsh.

color #637985

#637985 color RGB value is 99, 121, 133, and the CMYK value is 0.256, 0.0902, 0.00, 0.478. Alternative names for that color are: tool blue, gray, slategray, slate gray, manatee, violet, slategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
99, 121, 133
rgb(99, 121, 133)
CMYK
0.256, 0.0902, 0.00, 0.478
-
sRGB
0.388, 0.475, 0.522
rgb(38.8% 47.5% 52.2%)
Adobe® 98 RGB compatible
0.414, 0.471, 0.515
color(a98-rgb 0.414 0.471 0.515)
HCT
230, 16.9, 49.5
color(--hct 230 11.7% 49.5%)
HSL
201, 14.7, 45.5
hsl(201 14.7% 45.5%)
HSV
201, 25.6, 52.2
color(--hsv 201 25.6% 52.2%)
HWB
201, 38.8, 47.8
hwb(201 38.8% 47.8%)
Lab
49.4, -6.14, -9.39
lab(49.4 -6.14 -9.39)
P3
0.405, 0.472, 0.516
color(display-p3 0.405 0.472 0.516)
XYZ D50
0.162, 0.179, 0.188
color(xyz-d50 0.162 0.179 0.188)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#637985
RGB:99 121 133
HSL:201.18deg 14.66% 45.49%
HEX:#856f63
RGB:133 111 99
HSL:21.18deg 14.66% 45.49%

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