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Armored Ammolite

#05904b
Notes

Armored Ammolite (#05904B) is a deep teal 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 (150°, 93%, 29%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#05904b
RGB
rgb(5, 144, 75)
HSL
hsl(150, 93%, 29%)
HWB
hwb(150 2% 44%)
OKLCH
oklch(57.3% 0.147 152.7)
HSV
hsv(150, 97%, 56%)
LAB
lab(52.38% -48.86 27.62)
LCH
lch(52.38% 56.12 150.52)
CMYK
cmyk(97%, 0%, 48%, 44%)

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.

Ammolite
noun

The fossilized iridescent shell of Placenticeras ammonites — mined principally from the Bearpaw Formation in southern Alberta, Canada. The color refers to a polished ammolite cabochon: a saturated, slightly cool deep blue-green with the iridescent satin finish of structurally colored ancient nacre.

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

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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.

#05904b
Original
#908346
Protanopia
#827950
Deuteranopia
#008e80
Tritanopia
#6d6d6d
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).
AA Largeon White
4.12:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.10:1

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