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Faint Pyroclast

#1d042b
Notes

Faint Pyroclast (#1D042B) 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 (278°, 83%, 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
#1d042b
RGB
rgb(29, 4, 43)
HSL
hsl(278, 83%, 9%)
HWB
hwb(278 2% 83%)
OKLCH
oklch(18.4% 0.078 310.7)
HSV
hsv(278, 91%, 17%)
LAB
lab(4.72% 19.74 -19.83)
LCH
lch(4.72% 27.98 314.87)
CMYK
cmyk(33%, 91%, 0%, 83%)

Etymology

Faint
adjective

Old French faindre, to feign, weaken — used as a color modifier since the fifteenth century for hues that read as barely present. Faint pink, faint blue: very low saturation combined with high lightness. Sits at the pale-bucket extreme alongside whispered and ghostly.

Pyroclast
noun

Greek pyrós (fire) and klastós (broken) — the deep-cool-gray volcanic-debris tephra of Plinian and Pelean eruption-column collapse, particularly the Mount St. Helens 1980 and Pinatubo 1991 deposit fans. Pyroclast color refers to a Pinatubo-deposit pyroclast surface in raking light: a dark cool-gray with the matte finish of cooling-rate-quenched volcanic-glass-and-mineral fragment.

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

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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.

#1d042b
Original
#000f2c
Protanopia
#00112a
Deuteranopia
#1b0c16
Tritanopia
#0c0c0c
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
19.01:1
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
1.10:1

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