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Smoky Rocky

#0c1b59
Notes

Smoky Rocky (#0C1B59) is a deep blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (228°, 76%, 20%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0c1b59
RGB
rgb(12, 27, 89)
HSL
hsl(228, 76%, 20%)
HWB
hwb(228 5% 65%)
OKLCH
oklch(25.9% 0.113 267.0)
P3
color(display-p3 0.0607 0.1044 0.3351)
HSV
hsv(228, 87%, 35%)
LAB
lab(13.13% 20.04 -38.89)
LCH
lch(13.13% 43.75 297.26)
CMYK
cmyk(87%, 70%, 0%, 65%)

Etymology

Smoky
adjective

An adjectival form of smoke, used as a color word since at least the fourteenth century. Smoky implies a slightly muted, slightly hazed quality — as if the color were seen through a layer of suspended particulate. Used across both deep and neutral buckets: a smoky black has slightly less density than pure black; a smoky gray has slightly less coolness than pure gray.

Rocky
noun

The North American mountain range — and the saturated deep blue of Rocky Mountain alpine lakes (Bear Lake, Sapphire Lake, Lake Louise) at high altitude. Rocky refers to Sapphire Lake in Montana's Glacier National Park: a saturated, slightly cool deep blue with the optical clarity of glacier-fed alpine lake.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#0c1b59
Original
#00265b
Protanopia
#001e58
Deuteranopia
#002b37
Tritanopia
#1c1c1c
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
15.95:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.32:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##0C1B59
Display P3
Display P3
color(display-p3 0.0607 0.1044 0.3351)
P3 has subtle headroomOKLCH chroma 0.113

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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