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Local Lampblack

#18002d
Notes

Local Lampblack (#18002D) is a deep indigo 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 (272°, 100%, 9%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#18002d
RGB
rgb(24, 0, 45)
HSL
hsl(272, 100%, 9%)
HWB
hwb(272 0% 82%)
OKLCH
oklch(16.9% 0.088 303.8)
P3
color(display-p3 0.0825 0.0039 0.1682)
HSV
hsv(272, 100%, 18%)
LAB
lab(3.47% 19.89 -23.37)
LCH
lch(3.47% 30.69 310.40)
CMYK
cmyk(47%, 100%, 0%, 82%)

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.

Lampblack
noun

Carbon black pigment produced by the incomplete-combustion of oils-and-resins on a cooled-glass collector — the pigment of Chinese ink, Japanese sumi ink, and India ink. Lampblack color refers to a freshly ground lampblack-and-glue ink-stick rubbed on a Japanese suzuri ink-stone: a saturated, slightly cool deep black with the matte finish of pure-carbon pigment on absorbent hand-finished Japanese washi paper.

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.

#18002d
Original
#000c2e
Protanopia
#000c2c
Deuteranopia
#140a16
Tritanopia
#080808
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
19.50:1
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
1.08:1

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
##18002D
Display P3
Display P3
color(display-p3 0.0825 0.0039 0.1682)
P3 has subtle headroomOKLCH chroma 0.088

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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