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Authoritative Achimenes

#bc139c
Notes

Authoritative Achimenes (#BC139C) is a true magenta with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (311°, 82%, 41%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#bc139c
RGB
rgb(188, 19, 156)
HSL
hsl(311, 82%, 41%)
HWB
hwb(311 7% 26%)
OKLCH
oklch(54.5% 0.230 338.4)
P3
color(display-p3 0.6761 0.1641 0.5942)
HSV
hsv(311, 90%, 74%)
LAB
lab(43.60% 71.70 -31.11)
LCH
lch(43.60% 78.16 336.55)
CMYK
cmyk(0%, 90%, 17%, 26%)

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.

Achimenes
noun

Mexican magic flower (Achimenes longiflora) — a Gesneriaceae tuberous-rhizome perennial native to Central American cloud-forest understory, with deep-magenta tubular flowers that bloom in summer and dormant rhizomes in winter. Achimenes color refers to a fully opened Achimenes longiflora tubular flower: a saturated, slightly cool deep magenta with the velvet finish of fresh fused-petaled tubular corolla. Greek achimenes means winter-tender.

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

Click any swatch to explore

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.

#bc139c
Original
#21579f
Protanopia
#5f7099
Deuteranopia
#c7225c
Tritanopia
#414141
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
5.66:1
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
3.71:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##BC139C
Display P3
Display P3
color(display-p3 0.6761 0.1641 0.5942)
P3 has visible headroomOKLCH chroma 0.230

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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