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Decisive Swirl Strawberry

#b4308b
Notes

Decisive Swirl Strawberry (#B4308B) is a true magenta 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 (319°, 58%, 45%) 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
#b4308b
RGB
rgb(180, 48, 139)
HSL
hsl(319, 58%, 45%)
HWB
hwb(319 19% 29%)
OKLCH
oklch(54.1% 0.191 343.2)
P3
color(display-p3 0.6504 0.2313 0.5322)
HSV
hsv(319, 73%, 71%)
LAB
lab(43.78% 60.73 -20.65)
LCH
lch(43.78% 64.14 341.22)
CMYK
cmyk(0%, 73%, 23%, 29%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

Swirl
modifier

Middle English swirlen, to-whirl-in-eddies. As a color modifier, swirl implies a curling-and-eddying-and-spiraling quality, the visual register of Van-Gogh-Starry-Night-and-Hokusai-Wave-swirl hand-curling-and-eddying-and-spiraling Van-Gogh-Starry-Night-and-Hokusai-Wave-and-Art-Nouveau swirled-and-curling-and-eddying-and-spiraling surfaces under Van-Gogh-Starry-Night-and-Hokusai-Wave-and-Art-Nouveau brush-stroke-and-cresting-wave-and-vine-tendril nocturne-light. Sits at the modifier-and-mood end of the grid, parallel to eddy and stir in usage.

Strawberry
noun

Fragaria × ananassa, the cultivated strawberry of European gardens since the eighteenth century. The color refers to the surface of a ripe berry: a clean, bright red with a slight blue shift in the shadows of the achenes. Warmer than ruby, lighter than crimson, with the optical brightness of fresh fruit rather than the depth of pigment or gem.

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.

#b4308b
Original
#3e5a8d
Protanopia
#666f88
Deuteranopia
#c03059
Tritanopia
#535353
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
5.62:1
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
3.74:1

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
##B4308B
Display P3
Display P3
color(display-p3 0.6504 0.2313 0.5322)
P3 has visible headroomOKLCH chroma 0.191

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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