#2b303e - Diamond Black color

This is a deep, cool slate shade sitting between charcoal and navy. It reads as a muted blue-gray with strong anchoring depth, evoking dusk skies, polished graphite, and brushed steel. The color feels sophisticated, moody, and modern—excellent for creating calm, professional backdrops or accentuating brighter warm tones like copper and ochre. It maintains good legibility when paired with crisp whites or pale neutrals, and works well in interiors, user interfaces, and branding that seek a restrained, elegant, and slightly industrial atmosphere.

color #2b303e

#2b303e color RGB value is 43, 48, 62, and the CMYK value is 0.306, 0.226, 0.00, 0.757. Alternative names for that color are: diamond black, black, darkslategray, tuna, indigo, darkslategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
43, 48, 62
rgb(43, 48, 62)
CMYK
0.306, 0.226, 0.00, 0.757
-
sRGB
0.169, 0.188, 0.243
rgb(16.9% 18.8% 24.3%)
Adobe® 98 RGB compatible
0.189, 0.202, 0.250
color(a98-rgb 0.189 0.202 0.25)
HCT
269, 13.3, 19.9
color(--hct 269 9.17% 19.9%)
HSL
224, 18.1, 20.6
hsl(224 18.1% 20.6%)
HSV
224, 30.6, 24.3
color(--hsv 224 30.6% 24.3%)
HWB
224, 16.9, 75.7
hwb(224 16.9% 75.7%)
Lab
19.8, 0.684, -9.65
lab(19.8 0.684 -9.65)
P3
0.172, 0.188, 0.239
color(display-p3 0.172 0.188 0.239)
XYZ D50
0.0288, 0.0295, 0.0376
color(xyz-d50 0.029 0.029 0.038)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#2b303e
RGB:43 48 62
HSL:224.21deg 18.1% 20.59%
HEX:#3e392b
RGB:62 57 43
HSL:44.21deg 18.1% 20.59%

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