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Rugged Samarkand

#6c4ddc
Notes

Rugged Samarkand (#6C4DDC) is a true indigo with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (253°, 67%, 58%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#6c4ddc
RGB
rgb(108, 77, 220)
HSL
hsl(253, 67%, 58%)
HWB
hwb(253 30% 14%)
OKLCH
oklch(53.6% 0.207 287.2)
HSV
hsv(253, 65%, 86%)
LAB
lab(43.74% 48.32 -68.94)
LCH
lch(43.74% 84.18 305.03)
CMYK
cmyk(51%, 65%, 0%, 14%)

Etymology

Rugged
adjective

Old Norse rugga, rough / coarse — adjectival suffix -ed. As a color modifier, rugged implies a saturated-and-rough-and-weathered quality, the deep-rich color of Scottish-Highlands-and-Norwegian-fjord outdoor-and-mountain landscape. Sits at the bold-and-weathered end of the grid, parallel to tough and sinewy in usage.

Samarkand
noun

Central Asian Silk Road city in Uzbekistan — capital of Tamerlane's Timurid empire and home of the Registan madrasa complex with its iconic deep-blue tilework. Samarkand color refers to the deep-blue muqarnas vault of the Registan's Tilya-Kori madrasa: a saturated, slightly cool deep blue-violet with the glossy finish of cobalt-and-lazurite-glazed kashin tiles. Slightly warmer than Bukhara.

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.

#6c4ddc
Original
#006be0
Protanopia
#0063d9
Deuteranopia
#42708e
Tritanopia
#5e5e5e
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
5.63:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.73:1

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