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Robust Vermiglione

#cb3f29
Notes

Robust Vermiglione (#CB3F29) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (8°, 66%, 48%) 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
#cb3f29
RGB
rgb(203, 63, 41)
HSL
hsl(8, 66%, 48%)
HWB
hwb(8 16% 20%)
OKLCH
oklch(56.8% 0.180 31.7)
HSV
hsv(8, 80%, 80%)
LAB
lab(47.52% 54.14 43.84)
LCH
lch(47.52% 69.66 39.00)
CMYK
cmyk(0%, 69%, 80%, 20%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

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.

#cb3f29
Original
#685d25
Protanopia
#8b7c23
Deuteranopia
#e0093b
Tritanopia
#5b5b5b
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
4.90:1
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
4.28:1

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