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Resonant Malbec

#b40028
Notes

Resonant Malbec (#B40028) is a true red 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 (347°, 100%, 35%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b40028
RGB
rgb(180, 0, 40)
HSL
hsl(347, 100%, 35%)
HWB
hwb(347 0% 29%)
OKLCH
oklch(48.6% 0.196 21.6)
HSV
hsv(347, 100%, 71%)
LAB
lab(37.59% 62.43 32.68)
LCH
lch(37.59% 70.46 27.63)
CMYK
cmyk(0%, 100%, 78%, 29%)

Etymology

Resonant
adjective

Latin resonāns, echoing — present-participle of resonate, sharing root with sonance. As a color modifier, resonant implies a saturated-and-deep-vibrating quality where the hue carries low-frequency visual richness. Sits at the bold-and-resonant end of the grid, parallel to sonorous and resounding in usage.

Malbec
noun

A red-wine grape originally from Cahors in southwest France, now most associated with Argentine Mendoza wine regions. The color refers to a young Argentine Malbec: a deep, slightly cool dark red with the high tannin opacity of high-altitude grape wine. Deeper than Tempranillo, cooler than Rioja.

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

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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.

#b40028
Original
#484227
Protanopia
#706521
Deuteranopia
#c70017
Tritanopia
#292929
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
7.07:1
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
2.97:1

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