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Firm Persephone

#b135c5
Notes

Firm Persephone (#B135C5) 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 (292°, 58%, 49%) 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
#b135c5
RGB
rgb(177, 53, 197)
HSL
hsl(292, 58%, 49%)
HWB
hwb(292 21% 23%)
OKLCH
oklch(57.2% 0.227 321.7)
P3
color(display-p3 0.6405 0.2453 0.7474)
HSV
hsv(292, 73%, 77%)
LAB
lab(46.88% 67.44 -50.23)
LCH
lch(46.88% 84.08 323.32)
CMYK
cmyk(10%, 73%, 0%, 23%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Persephone
noun

Greek Περσεφόνη, the daughter of Demeter who became queen of the underworld after Hades abducted her and fed her six pomegranate seeds. Persephone color refers to a pomegranate-fruit half-and-half cross-section in seasonal art: a saturated, slightly cool deep violet with the matte finish of anthocyanin-rich pomegranate-arils against pale white pith. The myth is Greek for the seasonal cycle.

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.

#b135c5
Original
#0066c9
Protanopia
#4874c2
Deuteranopia
#b3507b
Tritanopia
#5a5a5a
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
5.02:1
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
4.18:1

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
##B135C5
Display P3
Display P3
color(display-p3 0.6405 0.2453 0.7474)
P3 has visible headroomOKLCH chroma 0.227

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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