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Crypted Conclave

#630378
Notes

Crypted Conclave (#630378) 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 (289°, 95%, 24%) 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
#630378
RGB
rgb(99, 3, 120)
HSL
hsl(289, 95%, 24%)
HWB
hwb(289 1% 53%)
OKLCH
oklch(36.8% 0.175 318.5)
P3
color(display-p3 0.3538 0.0612 0.4532)
HSV
hsv(289, 98%, 47%)
LAB
lab(23.92% 52.14 -41.15)
LCH
lch(23.92% 66.42 321.72)
CMYK
cmyk(18%, 98%, 0%, 53%)

Etymology

Crypted
adjective

Greek kryptē, hidden chamber — past-participle of crypt. As a color modifier, crypted implies the deep-and-funereal-and-architectural quality of medieval European cathedral-and-basilica royal-crypt-chamber underground architecture, particularly the Saint-Denis and Westminster-Abbey royal-funerary tradition. Sits at the deep-and-funereal end of the grid, parallel to sepulchral and tomblike.

Conclave
noun

Latin cum clave, with key — the locked-room cardinal-selection ceremony of the Sistine Chapel (since 1492), where cardinals wear deep-violet choir cassocks during the daily voting sessions. Conclave color refers to a contemporary cardinal's conclave choir-cassock: a saturated, slightly cool deep violet with the matte finish of vat-dyed ecclesiastical wool. Distinct from the cardinal's day-to-day red cassock.

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.

#630378
Original
#00337b
Protanopia
#0c3c76
Deuteranopia
#622544
Tritanopia
#202020
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
11.57:1
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
1.81:1

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
##630378
Display P3
Display P3
color(display-p3 0.3538 0.0612 0.4532)
P3 has subtle headroomOKLCH chroma 0.175

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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