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Imperial Tugtupite

#a9178a
Notes

Imperial Tugtupite (#A9178A) is a true magenta 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 (313°, 76%, 38%) places it in the highly saturated band at a mid 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
#a9178a
RGB
rgb(169, 23, 138)
HSL
hsl(313, 76%, 38%)
HWB
hwb(313 9% 34%)
OKLCH
oklch(50.5% 0.207 339.2)
P3
color(display-p3 0.6079 0.1578 0.5259)
HSV
hsv(313, 86%, 66%)
LAB
lab(39.39% 64.76 -27.01)
LCH
lch(39.39% 70.17 337.36)
CMYK
cmyk(0%, 86%, 18%, 34%)

Etymology

Imperial
adjective

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Tugtupite
noun

Rare beryllium-zinc silicate mineral first described from the Tugtup agtakôrfia (reindeer-blood place) deposit of Greenland in 1962. The mineral is fluorescent and tenebrescent (color-changes with UV exposure). Tugtupite color refers to a freshly UV-exposed Tugtup agtakôrfia tugtupite cabochon: a saturated, slightly cool deep magenta with the silky finish of tenebrescent beryllium-silicate. The Greenlandic name reflects Inuit reindeer-blood iconography.

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.

#a9178a
Original
#244f8d
Protanopia
#576587
Deuteranopia
#b32052
Tritanopia
#3e3e3e
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).
AAon White
6.61:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.18:1

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
##A9178A
Display P3
Display P3
color(display-p3 0.6079 0.1578 0.5259)
P3 has visible headroomOKLCH chroma 0.207

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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