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Robust Cartagena

#921a79
Notes

Robust Cartagena (#921A79) is a deep magenta 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 (313°, 70%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#921a79
RGB
rgb(146, 26, 121)
HSL
hsl(313, 70%, 34%)
HWB
hwb(313 10% 43%)
OKLCH
oklch(45.9% 0.181 338.5)
P3
color(display-p3 0.5253 0.1497 0.4611)
HSV
hsv(313, 82%, 57%)
LAB
lab(34.46% 56.69 -24.46)
LCH
lch(34.46% 61.74 336.66)
CMYK
cmyk(0%, 82%, 17%, 43%)

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.

Cartagena
noun

Colombian Caribbean port city — once a Spanish-Habsburg colonial trade entrepôt, whose old-town Ciudad Amurallada district carries the iconic deep-magenta lime-stucco façades of cartagenera colonial architecture. Cartagena color refers to a Cartagena old-town stucco façade in late-afternoon light: a saturated, slightly cool deep magenta with the matte finish of lime-and-iron-oxide-pigmented colonial stucco.

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.

#921a79
Original
#21457b
Protanopia
#4b5876
Deuteranopia
#9b2149
Tritanopia
#3a3a3a
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
7.94:1
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
2.65:1

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
##921A79
Display P3
Display P3
color(display-p3 0.5253 0.1497 0.4611)
P3 has visible headroomOKLCH chroma 0.181

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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