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Engulfed Ametrine

#55218a
Notes

Engulfed Ametrine (#55218A) is a deep indigo 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 (270°, 61%, 34%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#55218a
RGB
rgb(85, 33, 138)
HSL
hsl(270, 61%, 34%)
HWB
hwb(270 13% 46%)
OKLCH
oklch(38.5% 0.163 301.6)
P3
color(display-p3 0.3083 0.1415 0.5211)
HSV
hsv(270, 76%, 54%)
LAB
lab(26.31% 44.46 -48.71)
LCH
lch(26.31% 65.95 312.39)
CMYK
cmyk(38%, 76%, 0%, 46%)

Etymology

Engulfed
adjective

Old French en-golfe, into-the-gulf — past-participle of engulf. As a color modifier, engulfed implies the deep-overwhelming-and-cool quality where the hue has been completely surrounded by darkness, like a small boat overtaken by Atlantic-ocean swells. Sits at the deep-and-overwhelmed end of the grid, parallel to submerged and suffocating.

Ametrine
noun

Naturally bicolored amethyst-citrine zoned quartz mined principally at the Anahí mine in eastern Bolivia. The deep-violet amethyst portion contrasts with the golden citrine zone in a single crystal. Ametrine color refers to the deep-violet amethyst zone of a polished Anahí-mine ametrine cabochon: a saturated, slightly cool deep violet with the glassy finish of iron-and-aluminum-substituted quartz under reflected light.

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.

#55218a
Original
#003e8d
Protanopia
#003e88
Deuteranopia
#493c54
Tritanopia
#343434
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
10.66:1
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
1.97:1

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
##55218A
Display P3
Display P3
color(display-p3 0.3083 0.1415 0.5211)
P3 has subtle headroomOKLCH chroma 0.163

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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