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Robust Pang Crimson

#911a12
Notes

Robust Pang Crimson (#911A12) is a deep 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 (4°, 78%, 32%) places it in the highly saturated band at a dark 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#911a12
RGB
rgb(145, 26, 18)
HSL
hsl(4, 78%, 32%)
HWB
hwb(4 7% 43%)
OKLCH
oklch(42.7% 0.155 29.3)
HSV
hsv(4, 88%, 57%)
LAB
lab(31.36% 47.80 36.59)
LCH
lch(31.36% 60.19 37.43)
CMYK
cmyk(0%, 82%, 88%, 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.

Pang
modifier

Middle English pang, sudden-sharp-pain. As a color modifier, pang implies a sudden-and-piercing-and-sharp quality, the visual register of Petrarchan-sonnet-and-courtly-love-pang hand-sudden-and-piercing-and-sharp Petrarchan-sonnet-and-courtly-love-and-troubadour-lyric panged-and-sudden-and-piercing-and-sharp surfaces under Petrarchan-sonnet-and-courtly-love-and-troubadour-lyric pierced-and-yearning-and-stricken candlelit-poet-light. Sits at the modifier-and-mood end of the grid, parallel to ache and throb in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#911a12
Original
#41390f
Protanopia
#5e530a
Deuteranopia
#a0001a
Tritanopia
#333333
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
8.90:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.36:1

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