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Eclipsed Chàm

#16318b
Notes

Eclipsed Chàm (#16318B) 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 (226°, 73%, 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#16318b
RGB
rgb(22, 49, 139)
HSL
hsl(226, 73%, 32%)
HWB
hwb(226 9% 45%)
OKLCH
oklch(35.8% 0.153 265.8)
P3
color(display-p3 0.1124 0.1896 0.5245)
HSV
hsv(226, 84%, 55%)
LAB
lab(24.42% 25.83 -52.64)
LCH
lch(24.42% 58.64 296.14)
CMYK
cmyk(84%, 65%, 0%, 45%)

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.

Chàm
noun

The Vietnamese word for indigo — and vải chàm, the indigo-dyed cotton worn by H'mong, Tay, and Black Thai ethnic groups in Northern Vietnam. The color refers to a freshly chàm-dyed H'mong skirt: a saturated, slightly cool deep blue with the matte finish of multi-bath plant-dyed cotton.

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.

#16318b
Original
#00408e
Protanopia
#003589
Deuteranopia
#004959
Tritanopia
#323232
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
11.37:1
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
1.85:1

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
##16318B
Display P3
Display P3
color(display-p3 0.1124 0.1896 0.5245)
P3 has subtle headroomOKLCH chroma 0.153

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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