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Authoritative Roseate

#8c307a
Notes

Authoritative Roseate (#8C307A) is a true magenta 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 (312°, 49%, 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
#8c307a
RGB
rgb(140, 48, 122)
HSL
hsl(312, 49%, 37%)
HWB
hwb(312 19% 45%)
OKLCH
oklch(47.0% 0.152 336.3)
P3
color(display-p3 0.5074 0.2129 0.4659)
HSV
hsv(312, 66%, 55%)
LAB
lab(36.17% 47.63 -22.51)
LCH
lch(36.17% 52.68 334.71)
CMYK
cmyk(0%, 66%, 13%, 45%)

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.

Roseate
noun

Latin rosātus, rosy — adopted into English for any naturally pink-magenta colored phenomenon, particularly the roseate spoonbill (Platalea ajaja) of Florida and Caribbean coastal wetlands. Roseate color refers to a Platalea ajaja breast-and-shoulder feather field in late-afternoon light: a saturated, slightly cool deep magenta with the velvet finish of carotenoid-pigmented feather barbs over melanin-substrate flight feathers.

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.

#8c307a
Original
#314c7c
Protanopia
#4f5a78
Deuteranopia
#933550
Tritanopia
#494949
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
7.45:1
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
2.82:1

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
##8C307A
Display P3
Display P3
color(display-p3 0.5074 0.2129 0.4659)
P3 has subtle headroomOKLCH chroma 0.152

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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