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Steadfast Hortensia

#b539cf
Notes

Steadfast Hortensia (#B539CF) is a true violet with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (290°, 61%, 52%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b539cf
RGB
rgb(181, 57, 207)
HSL
hsl(290, 61%, 52%)
HWB
hwb(290 22% 19%)
OKLCH
oklch(58.7% 0.232 320.0)
P3
color(display-p3 0.6556 0.2598 0.7852)
HSV
hsv(290, 72%, 81%)
LAB
lab(48.58% 68.67 -53.23)
LCH
lch(48.58% 86.89 322.22)
CMYK
cmyk(13%, 72%, 0%, 19%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Hortensia
noun

French and Italian for hydrangea (Hydrangea macrophylla) — particularly the deep-violet macrophylla cultivars whose color depends on aluminum availability and soil pH. Hortensia color refers to a fully bloomed Hydrangea macrophylla mophead in acidic Breton soil: a saturated, slightly cool deep violet with the velvet finish of dense aluminum-anthocyanin-bonded sepal-flowers. Named after Hortense de Beauharnais, stepdaughter of Napoleon and Queen of Holland.

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.

#b539cf
Original
#006bd3
Protanopia
#4778cc
Deuteranopia
#b65681
Tritanopia
#5e5e5e
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).
AAon White
4.72:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.45:1

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
##B539CF
Display P3
Display P3
color(display-p3 0.6556 0.2598 0.7852)
P3 has visible headroomOKLCH chroma 0.232

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.

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