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Prismatic Benitoite

#159ae9
Notes

Prismatic Benitoite (#159AE9) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (202°, 83%, 50%) places it in the highly saturated band at a mid 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#159ae9
RGB
rgb(21, 154, 233)
HSL
hsl(202, 83%, 50%)
HWB
hwb(202 8% 9%)
OKLCH
oklch(66.0% 0.156 243.3)
HSV
hsv(202, 91%, 91%)
LAB
lab(60.91% -4.61 -48.83)
LCH
lch(60.91% 49.05 264.61)
CMYK
cmyk(91%, 34%, 0%, 9%)

Etymology

Prismatic
adjective

Greek prísma, prism — adjectival suffix -ic. As a color modifier, prismatic implies a saturated-and-multi-spectrum-decomposed quality, the bright color of crystal-prism and cut-glass-chandelier light-refraction-spectrum decomposition. Sits at the bright-and-shifting end of the grid, parallel to iridescent and spectral in usage.

Benitoite
noun

A barium-titanium silicate gem — California's official state gem, mined from a single small deposit in San Benito County (the source of its name). The color refers to a faceted California benitoite: a saturated, slightly cool deep blue with the gem's signature high dispersion (more than diamond) and internal fire.

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.

#159ae9
Original
#749dec
Protanopia
#578be8
Deuteranopia
#00adb7
Tritanopia
#838383
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).
AA Largeon White
3.07:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.83:1

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