#303b39 - Rookwood Shutter Green color

A very dark, muted teal-green leaning toward cool slate blue. It reads almost black at small scales, revealing subtle green-blue undertones in better light. The tone feels calm, sophisticated, and slightly moody — reminiscent of deep forest shadows, weathered patina, or stormy coastal waters. Excellent for grounding palettes, elegant UI backgrounds, and understated accents where depth and neutrality are desired without the starkness of pure black.

color #303b39

#303b39 color RGB value is 48, 59, 57, and the CMYK value is 0.186, 0.00, 0.0339, 0.769. Alternative names for that color are: rookwood shutter green, black, darkslategray, outer space, green, darkslategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
48, 59, 57
rgb(48, 59, 57)
CMYK
0.186, 0.00, 0.0339, 0.769
-
sRGB
0.188, 0.231, 0.224
rgb(18.8% 23.1% 22.4%)
Adobe® 98 RGB compatible
0.214, 0.241, 0.234
color(a98-rgb 0.214 0.241 0.234)
HCT
187, 8.82, 23.8
color(--hct 187 6.08% 23.8%)
HSL
169, 10.3, 21.0
hsl(169 10.3% 21%)
HSV
169, 18.6, 23.1
color(--hsv 169 18.6% 23.1%)
HWB
169, 18.8, 76.9
hwb(169 18.8% 76.9%)
Lab
23.8, -5.11, -0.364
lab(23.8 -5.11 -0.364)
P3
0.197, 0.230, 0.224
color(display-p3 0.197 0.23 0.224)
XYZ D50
0.0356, 0.0404, 0.0339
color(xyz-d50 0.036 0.04 0.034)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#303b39
RGB:48 59 57
HSL:169.09deg 10.28% 20.98%
HEX:#3b3032
RGB:59 48 50
HSL:349.09deg 10.28% 20.98%

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