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Established Cappadocia

#643eb3
Notes

Established Cappadocia (#643EB3) is a true indigo with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (259°, 49%, 47%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#643eb3
RGB
rgb(100, 62, 179)
HSL
hsl(259, 49%, 47%)
HWB
hwb(259 24% 30%)
OKLCH
oklch(47.4% 0.176 293.5)
HSV
hsv(259, 65%, 70%)
LAB
lab(36.76% 43.46 -56.52)
LCH
lch(36.76% 71.30 307.56)
CMYK
cmyk(44%, 65%, 0%, 30%)

Etymology

Established
adjective

Latin stabilīre, to make stable — past-participle of establish. As a color modifier, established implies a saturated-and-rooted quality where the hue carries the weight of long-standing visual presence. Sits at the bold-and-firm end of the grid, parallel to steadfast and anchored in usage.

Cappadocia
noun

Central Anatolian volcanic-tuff region in Turkey, famous for its Hittite-era nazar (evil-eye) amulets cast in deep-cobalt-blue glass. Cappadocia color refers to a hand-blown Cappadocian nazar glass disc on a Göreme bazaar stall: a saturated, slightly cool deep blue-violet with the glossy finish of cobalt-and-iron-flux Anatolian glassmaking. Distinct from the same region's pale-tuff stone formations.

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.

#643eb3
Original
#0058b7
Protanopia
#0054b1
Deuteranopia
#4e5a73
Tritanopia
#4f4f4f
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
7.29:1
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
2.88:1

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