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Sepulchral Lunar

#1e2487
Notes

Sepulchral Lunar (#1E2487) is a deep blue 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 (237°, 64%, 32%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1e2487
RGB
rgb(30, 36, 135)
HSL
hsl(237, 64%, 32%)
HWB
hwb(237 12% 47%)
OKLCH
oklch(33.4% 0.161 271.2)
P3
color(display-p3 0.1221 0.1405 0.5086)
HSV
hsv(237, 78%, 53%)
LAB
lab(21.16% 33.68 -55.49)
LCH
lch(21.16% 64.92 301.26)
CMYK
cmyk(78%, 73%, 0%, 47%)

Etymology

Sepulchral
adjective

Latin sepulcrālis, of the burial-place — adjectival form of sepulcrum. As a color modifier, sepulchral implies the deep funereal-and-formal darkness of Holy-Sepulchre-and-rock-cut royal-tomb interiors of medieval-and-Renaissance Christendom. Sits at the deep-and-funereal end of the grid, parallel to entombed and funereal in tone, both literary and architectural.

Lunar
noun

Latin luna, moon — adopted into English as the adjective for moon-related phenomena. The lunar color tradition refers to the deep blue-violet of Apollo-program lunar-orbit Earthrise photography (1968–1972) showing the deep blue limb of Earth over the gray Moon surface. Lunar color refers to a Hasselblad Earthrise photo's deep-Earth limb: a saturated, slightly cool deep blue-violet with the optical complexity of Earth-atmosphere Rayleigh scattering against the lunar void.

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.

#1e2487
Original
#00388a
Protanopia
#002e85
Deuteranopia
#004053
Tritanopia
#2a2a2a
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
12.67:1
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
1.66:1

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
##1E2487
Display P3
Display P3
color(display-p3 0.1221 0.1405 0.5086)
P3 has subtle headroomOKLCH chroma 0.161

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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