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Authoritative Galah

#992476
Notes

Authoritative Galah (#992476) is a true magenta with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (318°, 62%, 37%) 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
#992476
RGB
rgb(153, 36, 118)
HSL
hsl(318, 62%, 37%)
HWB
hwb(318 14% 40%)
OKLCH
oklch(47.7% 0.173 342.8)
P3
color(display-p3 0.5518 0.1815 0.4513)
HSV
hsv(318, 76%, 60%)
LAB
lab(36.64% 55.04 -19.10)
LCH
lch(36.64% 58.26 340.86)
CMYK
cmyk(0%, 76%, 23%, 40%)

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.

Galah
noun

Australian Eolophus roseicapilla — a Cacatuidae parrot of the Australian arid zone, whose breeding-plumage adults have a brilliant deep-magenta breast against pale-grey wings. Galah color refers to a Eolophus roseicapilla breast feather field in raking light: a saturated, slightly cool deep magenta with the velvet finish of carotenoid-pigmented feather barbs against the gray melanin-substrate wing-feather background.

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.

#992476
Original
#304a78
Protanopia
#555d73
Deuteranopia
#a3254a
Tritanopia
#434343
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
7.32:1
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
2.87:1

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
##992476
Display P3
Display P3
color(display-p3 0.5518 0.1815 0.4513)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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