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Crepuscular Morganite

#46003a
Notes

Crepuscular Morganite (#46003A) is a deep 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 (310°, 100%, 14%) 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
#46003a
RGB
rgb(70, 0, 58)
HSL
hsl(310, 100%, 14%)
HWB
hwb(310 0% 73%)
OKLCH
oklch(26.8% 0.118 337.2)
P3
color(display-p3 0.2487 0.0263 0.2197)
HSV
hsv(310, 100%, 27%)
LAB
lab(13.28% 36.74 -16.77)
LCH
lch(13.28% 40.39 335.47)
CMYK
cmyk(0%, 100%, 17%, 73%)

Etymology

Crepuscular
adjective

Latin crepusculāris, of twilight — derived from crepusculum (twilight). As a color modifier, crepuscular implies the deep blue-violet darkness of civil-twilight period between sunset and nightfall. Sits at the deep-and-cool end of the grid, where the hue carries the Belt of Venus atmospheric-scattering quality of clear-sky horizon at dusk.

Morganite
noun

Pink variety of the cyclosilicate beryl — first described from the San Piero in Campo deposits of Elba in 1911 and named for the financier J.P. Morgan. The color comes from manganese-and-cesium substitution. Morganite color refers to a faceted San Piero morganite gemstone: a saturated, slightly cool deep magenta with the glassy finish of cesium-and-manganese-substituted beryl. Cooler and pinker than aquamarine.

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.

#46003a
Original
#021b3b
Protanopia
#1e2639
Deuteranopia
#4a051e
Tritanopia
#131313
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
15.89:1
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
1.32:1

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
##46003A
Display P3
Display P3
color(display-p3 0.2487 0.0263 0.2197)
P3 has subtle headroomOKLCH chroma 0.118

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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