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Authoritative Yucatan

#c05aa1
Notes

Authoritative Yucatan (#C05AA1) is a true magenta 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 (318°, 45%, 55%) 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
#c05aa1
RGB
rgb(192, 90, 161)
HSL
hsl(318, 45%, 55%)
HWB
hwb(318 35% 25%)
OKLCH
oklch(61.5% 0.155 340.5)
HSV
hsv(318, 53%, 75%)
LAB
lab(53.05% 49.57 -19.38)
LCH
lch(53.05% 53.22 338.65)
CMYK
cmyk(0%, 53%, 16%, 25%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Yucatan
noun

Mexican peninsula, the limestone Karst shelf of southern Mexico — home of the Pink Lakes of Las Coloradas (deep magenta saline waters colored by halophilic algae and brine shrimp). Yucatan color refers to a Las Coloradas Pink Lake surface in midday sun: a saturated, slightly cool deep magenta with the matte finish of halophilic-algae-and-brine-shrimp-tinted hyper-saline water. The lakes are also a Phoenicopterus ruber flamingo nesting site.

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.

#c05aa1
Original
#5f74a3
Protanopia
#7c859e
Deuteranopia
#ca5c76
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
4.02:1
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
5.22:1

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