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Authoritative Pict Hibiscus

#e31404
Notes

Authoritative Pict Hibiscus (#E31404) is a true red with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (4°, 97%, 45%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#e31404
RGB
rgb(227, 20, 4)
HSL
hsl(4, 97%, 45%)
HWB
hwb(4 2% 11%)
OKLCH
oklch(58.0% 0.231 29.9)
P3
color(display-p3 0.8170 0.1973 0.1270)
HSV
hsv(4, 98%, 89%)
LAB
lab(48.06% 71.53 60.63)
LCH
lch(48.06% 93.77 40.28)
CMYK
cmyk(0%, 91%, 98%, 11%)

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.

Pict
modifier

Latin Picti, painted-people. As a color modifier, pict implies a pre-Christian-Caledonian quality, the visual register of Pictish-Caledonia hand-carved Pictish-symbol-stone Pictish-and-Caledonian pre-Christian-Caledonian surfaces under Pictish-Caledonia early-Christian-and-pre-Christian Highland light. Sits at the modifier-and-cultural end of the grid, parallel to celtic and scot in usage.

Hibiscus
noun

Hibiscus rosa-sinensis — the showy mallow of Pacific gardens, the Hawaiian state flower, the source of the deep red sorrel tea sold across West Africa as bissap. The color refers to a fully open hibiscus petal at midday: a hot, slightly magenta red with the velvet texture of a single-day bloom. By evening the same flower has wilted; by morning it's gone.

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.

#e31404
Original
#635600
Protanopia
#928100
Deuteranopia
#fb0017
Tritanopia
#3f3f3f
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
4.81:1
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
4.37:1

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
##E31404
Display P3
Display P3
color(display-p3 0.8170 0.1973 0.1270)
P3 has visible headroomOKLCH chroma 0.231

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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