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Entombed Ipomoea

#1d0638
Notes

Entombed Ipomoea (#1D0638) is a deep indigo 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 (268°, 81%, 12%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d0638
RGB
rgb(29, 6, 56)
HSL
hsl(268, 81%, 12%)
HWB
hwb(268 2% 78%)
OKLCH
oklch(20.0% 0.090 299.0)
P3
color(display-p3 0.1026 0.0280 0.2101)
HSV
hsv(268, 89%, 22%)
LAB
lab(6.12% 23.80 -27.25)
LCH
lch(6.12% 36.18 311.14)
CMYK
cmyk(48%, 89%, 0%, 78%)

Etymology

Entombed
adjective

Old French en-tombe, into-the-tomb — past-participle of entomb. As a color modifier, entombed implies the deep, sealed, untouched-by-light darkness of a sepulchre interior of medieval-and-Renaissance European cathedral architecture. Sits at the deep-and-funereal end of the grid, parallel to sepulchral and crypted in usage.

Ipomoea
noun

Morning glory (Ipomoea purpurea) — a Central American Convolvulaceae annual cultivated worldwide for its trumpet-shaped deep-violet flowers that open at dawn and close by midday. Ipomoea color refers to a freshly opened Ipomoea purpurea trumpet at dawn: a saturated, slightly cool deep violet with the velvet finish of fresh fused-petaled trumpet corolla. The genus name combines Greek ips (worm) and hómoios (similar).

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.

#1d0638
Original
#001439
Protanopia
#001337
Deuteranopia
#16131e
Tritanopia
#0e0e0e
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
18.50:1
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
1.14:1

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
##1D0638
Display P3
Display P3
color(display-p3 0.1026 0.0280 0.2101)
P3 has subtle headroomOKLCH chroma 0.090

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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