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Local Gabbro

#1d1a15
Notes

Local Gabbro (#1D1A15) is a deep amber with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (38°, 16%, 10%) places it in the muted 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d1a15
RGB
rgb(29, 26, 21)
HSL
hsl(38, 16%, 10%)
HWB
hwb(38 8% 89%)
OKLCH
oklch(21.9% 0.011 80.6)
P3
color(display-p3 0.1117 0.1024 0.0845)
HSV
hsv(38, 28%, 11%)
LAB
lab(9.43% 0.35 3.97)
LCH
lch(9.43% 3.99 85.03)
CMYK
cmyk(0%, 10%, 28%, 89%)

Etymology

Local
adjective

Latin locālis, of-a-place — adjectival suffix -al. As a color modifier, local implies a neutral-and-place-rooted-and-traditional quality, the neutral color of farm-to-table-and-100-mile-diet local-and-place-rooted artisanal-craft food-and-textile-and-pottery surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to regional and vernacular in usage.

Gabbro
noun

Italian Tuscan gabbro, the Tuscan-coastal outcrop of intrusive-igneous mafic rock — the deep-cool-gray coarse-grained plutonic equivalent of basalt. Gabbro color refers to a Tuscan-coastal Alpi-Apuane gabbro outcrop face in midday sun: a dark cool-gray with the matte finish of plagioclase-and-pyroxene intrusive-igneous coarse-grained plutonic rock.

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

This color has effectively no chroma (OKLCH C = 0.011) — it’s on the grayscale axis. Hue rotations don’t change a grayscale color, so complementary, analogous, triadic, and split-complementary all reduce to the same value. They aren’t shown because four identical tiles would be misleading.

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.

#1d1a15
Original
#1b1a15
Protanopia
#1c1b15
Deuteranopia
#1e1919
Tritanopia
#1a1a1a
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
17.34:1
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
1.21:1

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
##1D1A15
Display P3
Display P3
color(display-p3 0.1117 0.1024 0.0845)
Inside sRGBOKLCH chroma 0.011

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.

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