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Fortified Purpurnyy

#c557b8
Notes

Fortified Purpurnyy (#C557B8) is a true violet with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (307°, 49%, 56%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#c557b8
RGB
rgb(197, 87, 184)
HSL
hsl(307, 49%, 56%)
HWB
hwb(307 34% 23%)
OKLCH
oklch(62.8% 0.182 332.3)
HSV
hsv(307, 56%, 77%)
LAB
lab(54.19% 56.15 -30.96)
LCH
lch(54.19% 64.12 331.13)
CMYK
cmyk(0%, 56%, 7%, 23%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Purpurnyy
noun

Russian пурпурный, purple — derived from Latin purpura via Greek porphyra. The Russian Orthodox liturgical color for Pentecost and the deep-purple-and-gold iconostasis tradition. Purpurnyy color refers to a Russian Orthodox cathedral iconostasis royal-doors panel: a saturated, slightly cool deep violet with the matte finish of egg-tempera ultramarine-and-cinnabar on gilt gesso. Slightly cooler than Spanish púrpura.

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.

#c557b8
Original
#5378bb
Protanopia
#7587b5
Deuteranopia
#cd5f80
Tritanopia
#757575
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).
AA Largeon White
3.87:1
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
5.43:1

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