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Stalwart Tulip

#682491
Notes

Stalwart Tulip (#682491) is a true indigo 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 (277°, 60%, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#682491
RGB
rgb(104, 36, 145)
HSL
hsl(277, 60%, 35%)
HWB
hwb(277 14% 43%)
OKLCH
oklch(41.9% 0.172 309.2)
HSV
hsv(277, 75%, 57%)
LAB
lab(30.03% 48.52 -46.88)
LCH
lch(30.03% 67.47 315.99)
CMYK
cmyk(28%, 75%, 0%, 43%)

Etymology

Stalwart
adjective

Old English stǣl-wyrðe, stable-and-worthy. As a color modifier, stalwart implies a saturated-and-loyal-and-firm quality where the hue carries the dependable-and-trustworthy visual presence of a Knight-Templar guard. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Tulip
noun

The genus Tulipa — Central Asian bulbs cultivated in Ottoman gardens, brought to Europe in the sixteenth century, and famously the subject of tulipomania in the 1630s Dutch Republic. The color refers to a deep purple Tulipa hybrid in spring bloom: a saturated, slightly red-shifted deep purple with the satiny finish of a six-petaled goblet. Cooler than orchid, warmer than indigo, with the cultivation history of a flower that briefly cost more than houses.

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.

#682491
Original
#004494
Protanopia
#05488f
Deuteranopia
#623d59
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
9.33:1
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
2.25:1

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