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Flashing Java

#a580fd
Notes

Flashing Java (#A580FD) is a soft indigo 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 (258°, 97%, 75%) places it in the highly saturated band at a light 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a580fd
RGB
rgb(165, 128, 253)
HSL
hsl(258, 97%, 75%)
HWB
hwb(258 50% 1%)
OKLCH
oklch(69.0% 0.179 294.9)
HSV
hsv(258, 49%, 99%)
LAB
lab(62.11% 41.00 -57.54)
LCH
lch(62.11% 70.65 305.47)
CMYK
cmyk(35%, 49%, 0%, 1%)

Etymology

Flashing
adjective

Old English flasch, flash — present-participle of flash. As a color modifier, flashing implies a saturated-and-rapid-on-off quality, the bright color of emergency-vehicle and photographic-flash light-burst surfaces. Sits at the bright-and-flashing end of the grid, parallel to coruscating and flickering in usage.

Java
noun

Indonesian island, the colonial-era Dutch source of Indigofera tinctoria cultivation supplementing the Indian supply, and the home of batik tulis indigo wax-resist dyeing. Java color refers to a Yogyakarta-made batik tulis sarong: a saturated, slightly cool deep blue-violet with the matte finish of multi-bath fermentation indigo on hand-waxed cotton. Slightly warmer than Bengali indigo from the Indian mainland.

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.

#a580fd
Original
#5197ff
Protanopia
#5994fa
Deuteranopia
#9099b3
Tritanopia
#919191
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).
Failon White
2.96:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.11:1

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