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Gladiatorial Tied Ultramarine

#5168ef
Notes

Gladiatorial Tied Ultramarine (#5168EF) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (231°, 83%, 63%) places it in the highly saturated band at a mid 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#5168ef
RGB
rgb(81, 104, 239)
HSL
hsl(231, 83%, 63%)
HWB
hwb(231 32% 6%)
OKLCH
oklch(57.7% 0.203 271.2)
HSV
hsv(231, 66%, 94%)
LAB
lab(49.35% 33.99 -70.64)
LCH
lch(49.35% 78.39 295.70)
CMYK
cmyk(66%, 56%, 0%, 6%)

Etymology

Gladiatorial
adjective

Latin gladiātōrius, of the gladiator — adjectival suffix, derived from gladius (short-sword). As a color modifier, gladiatorial implies a saturated-and-combative-and-bloody quality, the deep-rich color of Roman-Colosseum gladiator-arena bloody-tunic-and-shield combat-attire. Sits at the bold-and-formal end of the grid, parallel to spartan and valiant.

Tied
modifier

Old English tīgan, to-tie or to-bind. As a color modifier, tied implies a hand-tied-and-knotted quality, the visual register of hand-tied-and-knotted-rope-and-string hand-tied-and-knotted-fishing-net-and-shoelace-and-bow hand-tied-and-knotted-rope-and-cord surfaces under hand-tied-and-knotted-rope-and-cord working-light. Sits at the modifier-and-texture end of the grid, parallel to sewn and knot in usage.

Ultramarine
noun

The pigment ground from lapis lazuli — the Afghan mineral imported through Venice in the late Middle Ages, more expensive by weight than gold during the Renaissance. The color refers to a freshly mixed ultramarine pigment in linseed oil: a saturated, slightly violet-shifted deep blue with the matte finish of micron-ground rock. Deeper than cobalt, cooler than royal, with the art-historical weight of the blue Vermeer reserved for Mary's robe.

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.

#5168ef
Original
#007df4
Protanopia
#006eec
Deuteranopia
#0089a1
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).
AAon White
4.59:1
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
4.58:1

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