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Armored Observatory

#3850a9
Notes

Armored Observatory (#3850A9) is a true blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (227°, 50%, 44%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#3850a9
RGB
rgb(56, 80, 169)
HSL
hsl(227, 50%, 44%)
HWB
hwb(227 22% 34%)
OKLCH
oklch(46.3% 0.145 268.8)
P3
color(display-p3 0.2395 0.3111 0.6404)
HSV
hsv(227, 67%, 66%)
LAB
lab(36.82% 20.75 -50.64)
LCH
lch(36.82% 54.73 292.28)
CMYK
cmyk(67%, 53%, 0%, 34%)

Etymology

Armored
adjective

Old French armëure, armor — past-participle of armor, derived from Latin arma (weapons). As a color modifier, armored implies a saturated-and-armor-clad-and-defensive quality, the deep-rich color of medieval-knight full-plate-armor visible-and-formidable battle-presence. Sits at the bold-and-fortified end of the grid, parallel to ironclad and shielded.

Observatory
noun

An astronomical research facility — particularly the deep-blue interior paint of optical observatories like Mount Wilson, Palomar, and Mauna Kea. The deep blue minimizes stray-light reflection inside the dome. The color refers to the painted interior of a research-grade optical observatory: a saturated, slightly cool very deep blue with the matte finish of low-reflectance enamel.

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.

#3850a9
Original
#185cac
Protanopia
#0052a7
Deuteranopia
#006574
Tritanopia
#515151
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
7.27:1
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
2.89:1

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
##3850A9
Display P3
Display P3
color(display-p3 0.2395 0.3111 0.6404)
P3 has subtle headroomOKLCH chroma 0.145

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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