#637983 - Blue Monday color

Imagine a muted slate blue-green that balances coolness with a soft, earthy depth. It reads as a stormy sea toned down by gray, carrying a subtle green undertone that keeps it from feeling purely blue. The result is sophisticated and calming, evoking coastal pines under overcast skies or weathered metal. It’s versatile for interiors and design, harmonizing with warm neutrals, aged brass, or pale woods, and works equally well as an anchoring background or an understated accent.

color #637983

#637983 color RGB value is 99, 121, 131, and the CMYK value is 0.244, 0.0763, 0.00, 0.486. Alternative names for that color are: blue monday, gray, slategray, pale sky, manatee, violet, slategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
99, 121, 131
rgb(99, 121, 131)
CMYK
0.244, 0.0763, 0.00, 0.486
-
sRGB
0.388, 0.475, 0.514
rgb(38.8% 47.5% 51.4%)
Adobe® 98 RGB compatible
0.414, 0.471, 0.508
color(a98-rgb 0.414 0.471 0.508)
HCT
226, 16.2, 49.5
color(--hct 226 11.2% 49.5%)
HSL
199, 13.9, 45.1
hsl(199 13.9% 45.1%)
HSV
199, 24.4, 51.4
color(--hsv 199 24.4% 51.4%)
HWB
199, 38.8, 48.6
hwb(199 38.8% 48.6%)
Lab
49.3, -6.52, -8.30
lab(49.3 -6.52 -8.3)
P3
0.405, 0.472, 0.509
color(display-p3 0.405 0.472 0.509)
XYZ D50
0.161, 0.179, 0.182
color(xyz-d50 0.161 0.179 0.182)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#637983
RGB:99 121 131
HSL:198.75deg 13.91% 45.1%
HEX:#836d63
RGB:131 109 99
HSL:18.75deg 13.91% 45.1%

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