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Inscribed Stichtite

#63587b
Notes

Inscribed Stichtite (#63587B) is a true indigo with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (259°, 17%, 41%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#63587b
RGB
rgb(99, 88, 123)
HSL
hsl(259, 17%, 41%)
HWB
hwb(259 35% 52%)
OKLCH
oklch(48.5% 0.057 298.7)
P3
color(display-p3 0.3810 0.3466 0.4726)
HSV
hsv(259, 28%, 48%)
LAB
lab(39.68% 12.26 -18.11)
LCH
lch(39.68% 21.87 304.11)
CMYK
cmyk(20%, 28%, 0%, 52%)

Etymology

Inscribed
adjective

Latin īnscrībere, to write upon — past-participle of inscribe. As a color modifier, inscribed implies a clear-and-text-or-pattern-cut quality, the crisp color of Roman-Imperial-period monumental-stone inscription-and-monumental-text incised-relief. Sits at the crisp-and-incised end of the grid, parallel to etched and engraved in usage.

Stichtite
noun

Rare violet-pink chromium-bearing mineral first described from the Dundas deposits of Tasmania in 1910 by Robert Sticht. Stichtite color refers to a polished Dundas stichtite-and-serpentine cabochon: a saturated, slightly cool deep violet with the silky finish of fibrous magnesium-chromium hydroxide-carbonate. The mineral is the chromium-substituted analog of brugnatellite, valued in lapidary work for its banded color.

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.

#63587b
Original
#505d7c
Protanopia
#525d7a
Deuteranopia
#5f5d64
Tritanopia
#5d5d5d
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
6.54:1
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
3.21:1

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
##63587B
Display P3
Display P3
color(display-p3 0.3810 0.3466 0.4726)
Inside sRGBOKLCH chroma 0.057

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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