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Eclipsed Plavi

#1d2d8a
Notes

Eclipsed Plavi (#1D2D8A) 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 (231°, 65%, 33%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d2d8a
RGB
rgb(29, 45, 138)
HSL
hsl(231, 65%, 33%)
HWB
hwb(231 11% 46%)
OKLCH
oklch(35.3% 0.155 268.9)
P3
color(display-p3 0.1271 0.1748 0.5205)
HSV
hsv(231, 79%, 54%)
LAB
lab(23.58% 28.83 -53.39)
LCH
lch(23.58% 60.67 298.37)
CMYK
cmyk(79%, 67%, 0%, 46%)

Etymology

Eclipsed
adjective

Greek ékleipsis, abandonment — past-participle of eclipse. As a color modifier, eclipsed implies the deep occulting darkness of a celestial-body-blocked light-source, where umbral-and-penumbral shadows fall on the hue. Sits at the deep-and-cool end of the grid, parallel to occluded with astronomical connotation.

Plavi
noun

The Serbo-Croatian word for blue — used across Bosnia, Croatia, Serbia, and Montenegro for the saturated deep blue of Adriatic water and traditional folk-embroidery. The color refers to plavi embroidery thread on Croatian čilim rug: a saturated, slightly cool deep blue with the matte finish of dyed wool thread.

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.

#1d2d8a
Original
#003d8d
Protanopia
#003388
Deuteranopia
#004657
Tritanopia
#303030
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
11.70:1
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
1.79:1

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
##1D2D8A
Display P3
Display P3
color(display-p3 0.1271 0.1748 0.5205)
P3 has subtle headroomOKLCH chroma 0.155

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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