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Hushed Lampblack

#100823
Notes

Hushed Lampblack (#100823) 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 (258°, 63%, 8%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#100823
RGB
rgb(16, 8, 35)
HSL
hsl(258, 63%, 8%)
HWB
hwb(258 3% 86%)
OKLCH
oklch(16.5% 0.054 293.4)
P3
color(display-p3 0.0580 0.0326 0.1312)
HSV
hsv(258, 77%, 14%)
LAB
lab(3.66% 8.96 -15.46)
LCH
lch(3.66% 17.87 300.10)
CMYK
cmyk(54%, 77%, 0%, 86%)

Etymology

Hushed
adjective

The past participle of hush, to silence — used as a color modifier since the late nineteenth century for hues that read as if turned down. Hushed pink, hushed lavender: low saturation combined with optical quietness. Sits at the hushed-bucket center alongside muted.

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.

#100823
Original
#000d24
Protanopia
#010d22
Deuteranopia
#0b0e14
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
19.43:1
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
##100823
Display P3
Display P3
color(display-p3 0.0580 0.0326 0.1312)
Inside sRGBOKLCH chroma 0.054

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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