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Regal Vermiglione

#b73a38
Notes

Regal Vermiglione (#B73A38) is a true red 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 (1°, 53%, 47%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b73a38
RGB
rgb(183, 58, 56)
HSL
hsl(1, 53%, 47%)
HWB
hwb(1 22% 28%)
OKLCH
oklch(53.1% 0.162 25.3)
P3
color(display-p3 0.6629 0.2639 0.2405)
HSV
hsv(1, 69%, 72%)
LAB
lab(43.33% 50.12 29.84)
LCH
lch(43.33% 58.33 30.77)
CMYK
cmyk(0%, 68%, 69%, 28%)

Etymology

Regal
adjective

Latin rēgālis, kingly — derived from rēx (king). As a color modifier, regal implies a saturated-and-royal-formality quality, the deep-rich color of British-Coronation-period royal vestment-and-mantle and Imperial-State-Crown regalia. Sits at the bold-and-imperial end of the grid, parallel to sovereign and royal in usage.

Vermiglione
noun

The Italian name for vermillion — used in the cinnabar-pigment chapters of Cennino Cennini's Il Libro dell'Arte and across Sienese and Florentine fresco. The color refers to vermiglione in a fifteenth-century altarpiece: a saturated, slightly orange red with the matte finish of egg-tempera-bound pigment. The Italian equivalent of bermellón.

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.

#b73a38
Original
#5d5537
Protanopia
#7c7034
Deuteranopia
#c9163b
Tritanopia
#545454
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
5.71:1
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
3.68:1

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
##B73A38
Display P3
Display P3
color(display-p3 0.6629 0.2639 0.2405)
P3 has subtle headroomOKLCH chroma 0.162

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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