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Cultured Forge

#0b0a3f
Notes

Cultured Forge (#0B0A3F) 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 (241°, 73%, 14%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0b0a3f
RGB
rgb(11, 10, 63)
HSL
hsl(241, 73%, 14%)
HWB
hwb(241 4% 75%)
OKLCH
oklch(19.5% 0.096 273.7)
P3
color(display-p3 0.0425 0.0393 0.2362)
HSV
hsv(241, 84%, 25%)
LAB
lab(5.84% 20.41 -32.82)
LCH
lch(5.84% 38.65 301.88)
CMYK
cmyk(83%, 84%, 0%, 75%)

Etymology

Cultured
adjective

Latin cultūra, cultivation — past-participle of culture. As a color modifier, cultured implies a neutral-and-cultivated-and-educated quality, the neutral color of Edwardian-and-Belle-Époque cultivated-and-educated-and-refined elegant-and-cultivated interior-decoration-and-dress-attire coordinated-color tone. Sits at the neutral-and-cultivated end of the grid, parallel to refined and polished in usage.

Forge
noun

A blacksmith's hearth — coal or coke fire driven to working temperature by bellows, where iron is heated to forge welding range. Forge as a color refers to the dark gray-black of the forge floor and surrounding stonework: a deep, slightly muted dark gray with the slightly oily finish of carbon-and-iron-residue saturation. Warmer than basalt, drier than asphalt, with the craft weight of a workshop where iron is still beaten by hand.

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.

#0b0a3f
Original
#001541
Protanopia
#00103e
Deuteranopia
#001923
Tritanopia
#0e0e0e
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
18.59:1
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
1.13:1

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
##0B0A3F
Display P3
Display P3
color(display-p3 0.0425 0.0393 0.2362)
P3 has subtle headroomOKLCH chroma 0.096

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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