#1f3b4d - Subterranean River color
A deep, stormy slate-blue with muted teal undertones, this color feels like twilight over calm ocean waters. Dark and desaturated, it reads sophisticated and restrained, lending weight and quiet confidence to designs. It pairs well with warm metallics like copper or brass, and contrasts beautifully with soft creams, muted corals, or mustard accents. Ideal for elegant branding, moody interiors, or refined user interfaces, it conveys stability, introspection, and subtle luxury without overpowering complementary elements.
#1f3b4d color RGB value is 31, 59, 77, and the CMYK value is 0.597, 0.234, 0.00, 0.698. Alternative names for that color are: subterranean river, black, darkslategray, elephant, outer space, indigo, darkslategrey.
Color Conversion
Name | Values | CSS |
|---|---|---|
RGB(0-255) | 31, 59, 77 | rgb(31, 59, 77) |
CMYK | 0.597, 0.234, 0.00, 0.698 | - |
sRGB | 0.122, 0.231, 0.302 | rgb(12.2% 23.1% 30.2%) |
Adobe® 98 RGB compatible | 0.177, 0.241, 0.304 | color(a98-rgb 0.177 0.241 0.304) |
HCT | 239, 21.8, 23.5 | color(--hct 239 15.1% 23.5%) |
HSL | 203, 42.6, 21.2 | hsl(203 42.6% 21.2%) |
HSV | 203, 59.7, 30.2 | color(--hsv 203 59.7% 30.2%) |
HWB | 203, 12.2, 69.8 | hwb(203 12.2% 69.8%) |
Lab | 23.3, -6.37, -14.5 | lab(23.3 -6.37 -14.5) |
P3 | 0.147, 0.229, 0.295 | color(display-p3 0.147 0.229 0.295) |
XYZ D50 | 0.0334, 0.0389, 0.0574 | color(xyz-d50 0.033 0.039 0.057) |
