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Dressed Singularity

#180220
Notes

Dressed Singularity (#180220) is a deep violet 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 (284°, 88%, 7%) 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
#180220
RGB
rgb(24, 2, 32)
HSL
hsl(284, 88%, 7%)
HWB
hwb(284 1% 87%)
OKLCH
oklch(16.0% 0.068 316.4)
P3
color(display-p3 0.0833 0.0115 0.1197)
HSV
hsv(284, 94%, 13%)
LAB
lab(3.09% 13.69 -13.92)
LCH
lch(3.09% 19.52 314.52)
CMYK
cmyk(25%, 94%, 0%, 87%)

Etymology

Dressed
adjective

Old French dresser, to arrange — past-participle of dress. As a color modifier, dressed implies a neutral-and-arranged-and-formal quality, the neutral color of Edwardian-period full-formal-and-evening-wear arranged-and-coordinated dress-attire-and-uniform craft-finish. Sits at the neutral-and-traditional end of the grid, parallel to suited and tailored in usage.

Singularity
noun

Astrophysical gravitational singularity — the central infinitely-dense point of a black hole, where general relativity's space-time geometry becomes formally undefined. Singularity color refers to a Schwarzschild radius event-horizon as visualized in a Penrose diagram: a saturated, slightly cool deep black with the optical complexity of complete light-extinction within the gravitational radius. The deepest theoretical absolute black.

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.

#180220
Original
#000a21
Protanopia
#020c1f
Deuteranopia
#17070f
Tritanopia
#090909
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
19.66:1
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
##180220
Display P3
Display P3
color(display-p3 0.0833 0.0115 0.1197)
Inside sRGBOKLCH chroma 0.068

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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