colors
Back to gallery

Provincial Hornblende

#1d0313
Notes

Provincial Hornblende (#1D0313) is a deep magenta 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 (323°, 81%, 6%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d0313
RGB
rgb(29, 3, 19)
HSL
hsl(323, 81%, 6%)
HWB
hwb(323 1% 89%)
OKLCH
oklch(16.2% 0.055 345.2)
P3
color(display-p3 0.1016 0.0166 0.0719)
HSV
hsv(323, 90%, 11%)
LAB
lab(3.37% 12.37 -3.53)
LCH
lch(3.37% 12.86 344.07)
CMYK
cmyk(0%, 90%, 34%, 89%)

Etymology

Provincial
adjective

Latin prōvinciālis, of-a-province — adjectival suffix -al. As a color modifier, provincial implies a neutral-and-regional-and-traditional quality, the neutral color of French-Provincial-Provençal and Italian-Tuscan-Provincial regional-tradition interior-decoration-and-textile surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to regional and country in usage.

Hornblende
noun

(Ca,Na)₂(Mg,Fe,Al)₅(Si,Al)₈O₂₂(OH)₂ amphibole-group mineral — the principal mafic mineral of granite-and-gneiss, particularly the hornblende-biotite gneisses of the Adirondacks and the Scottish Highlands. Hornblende color refers to a freshly cleaved Adirondack hornblende prismatic-cluster face: a saturated, slightly cool deep black with the glassy finish of monoclinic-system iron-magnesium-aluminum-amphibole. The German name Hornblende is 16th-century Saxon mining vocabulary.

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.

#1d0313
Original
#050914
Protanopia
#0c0e12
Deuteranopia
#200309
Tritanopia
#0a0a0a
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
19.54:1
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
1.07:1

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
##1D0313
Display P3
Display P3
color(display-p3 0.1016 0.0166 0.0719)
Inside sRGBOKLCH chroma 0.055

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

Canvas