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Robust Sevilla

#971b43
Notes

Robust Sevilla (#971B43) 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 (341°, 70%, 35%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#971b43
RGB
rgb(151, 27, 67)
HSL
hsl(341, 70%, 35%)
HWB
hwb(341 11% 41%)
OKLCH
oklch(44.7% 0.159 8.3)
P3
color(display-p3 0.5434 0.1554 0.2652)
HSV
hsv(341, 82%, 59%)
LAB
lab(33.50% 51.75 8.97)
LCH
lch(33.50% 52.53 9.84)
CMYK
cmyk(0%, 82%, 56%, 41%)

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.

Sevilla
noun

The Andalusian capital — and the saturated red of the capote (matador's cape) and sangría fountains of Sevillian fiesta. Sevilla as a color refers to the deep red of a flamenco dress in a tablao: a saturated, slightly warm deep red with the satin finish of multi-bath dyed silk. Warmer than burgundy, deeper than crimson.

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.

#971b43
Original
#3d3f44
Protanopia
#5d5840
Deuteranopia
#a5002d
Tritanopia
#383838
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
8.22:1
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
2.55:1

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
##971B43
Display P3
Display P3
color(display-p3 0.5434 0.1554 0.2652)
P3 has subtle headroomOKLCH chroma 0.159

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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