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Sizzling Cyan

#3791ff
Notes

Sizzling Cyan (#3791FF) 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 (213°, 100%, 61%) 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
#3791ff
RGB
rgb(55, 145, 255)
HSL
hsl(213, 100%, 61%)
HWB
hwb(213 22% 0%)
OKLCH
oklch(65.9% 0.184 255.6)
HSV
hsv(213, 78%, 100%)
LAB
lab(60.14% 11.27 -62.14)
LCH
lch(60.14% 63.15 280.28)
CMYK
cmyk(78%, 43%, 0%, 0%)

Etymology

Sizzling
adjective

Imitative-onomatopoeic origin — present-participle of sizzle, with sound-and-action mimicry. As a color modifier, sizzling implies a saturated-and-hot-and-active quality, the bright color of Spanish-tapas-tapa hot-griddle iron-skillet surface-emission. Sits at the bright-and-warm end of the grid, parallel to searing and scorching in usage.

Cyan
noun

From the Greek kyanos, deep blue, originally referring to the lapis-derived blue of antiquity. In modern usage, cyan is one of the four printing primaries (with magenta, yellow, and black) and an additive primary on screens. The color refers to a pure CMYK cyan tile: a saturated, clean blue-green with the optical brightness of an additive-color primary. Cooler than turquoise, lighter than cerulean, with the technical specificity of a color defined by a printing-press standard.

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.

#3791ff
Original
#599bff
Protanopia
#3089fd
Deuteranopia
#00abbb
Tritanopia
#868686
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
3.15:1
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
6.66:1

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