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Shadowed Earth

#13287b
Notes

Shadowed Earth (#13287B) 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 (228°, 73%, 28%) 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
#13287b
RGB
rgb(19, 40, 123)
HSL
hsl(228, 73%, 28%)
HWB
hwb(228 7% 52%)
OKLCH
oklch(32.4% 0.143 266.6)
P3
color(display-p3 0.0940 0.1548 0.4637)
HSV
hsv(228, 85%, 48%)
LAB
lab(20.38% 25.40 -49.20)
LCH
lch(20.38% 55.38 297.31)
CMYK
cmyk(85%, 67%, 0%, 52%)

Etymology

Shadowed
adjective

The past participle of shadow, used adjectivally for a color that reads as if partially in shadow rather than fully lit. Implies the slight darkening and cooling that any color undergoes when light is reduced — not the absence of color but the muting of it. Sits in the deep-and-cool end of the engine's grid, lighter than inky and warmer than somber.

Earth
noun

The third planet from the Sun — and the saturated deep blue of Earth seen from space, the pale blue dot of Carl Sagan's Voyager-1 image. Earth color refers to the average reflectance of Earth seen from low orbit: a saturated, slightly cool deep blue with the optical complexity of ocean-and-cloud-and-atmosphere reflectance.

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.

#13287b
Original
#00367e
Protanopia
#002c79
Deuteranopia
#003e4d
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
12.99:1
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
1.62:1

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
##13287B
Display P3
Display P3
color(display-p3 0.0940 0.1548 0.4637)
P3 has subtle headroomOKLCH chroma 0.143

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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