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Glistening Blau

#1fa3ff
Notes

Glistening Blau (#1FA3FF) is a true azure with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (205°, 100%, 56%) 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
#1fa3ff
RGB
rgb(31, 163, 255)
HSL
hsl(205, 100%, 56%)
HWB
hwb(205 12% 0%)
OKLCH
oklch(69.4% 0.171 246.3)
HSV
hsv(205, 88%, 100%)
LAB
lab(64.72% -1.19 -54.85)
LCH
lch(64.72% 54.86 268.76)
CMYK
cmyk(88%, 36%, 0%, 0%)

Etymology

Glistening
adjective

Old English glisnian, to glisten — present-participle of glisten, sharing root with German glitzern. As a color modifier, glistening implies a saturated-and-wet-or-polished-reflective quality, the bright color of fresh-rain-and-polished-silver surface-reflection. Sits at the bright-and-reflective end of the grid, parallel to shimmering and gleaming in usage.

Blau
noun

The German word for blue — used in Bayerische Blau (Bavarian blue), Berliner Blau (Berlin blue, an alternate name for Prussian blue), and the Blau-Weiß of the Bavarian state flag. The color refers to a Bavarian state-flag rondel: a saturated, slightly cool deep blue with the matte finish of dyed wool.

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.

#1fa3ff
Original
#76a7ff
Protanopia
#5694fd
Deuteranopia
#00b9c5
Tritanopia
#8e8e8e
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
2.71:1
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
7.74:1

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