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Confident Plavi

#3f83fb
Notes

Confident Plavi (#3F83FB) 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 (218°, 96%, 62%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3f83fb
RGB
rgb(63, 131, 251)
HSL
hsl(218, 96%, 62%)
HWB
hwb(218 25% 2%)
OKLCH
oklch(63.0% 0.192 260.8)
HSV
hsv(218, 75%, 98%)
LAB
lab(56.34% 19.19 -66.04)
LCH
lch(56.34% 68.77 286.20)
CMYK
cmyk(75%, 48%, 0%, 2%)

Etymology

Confident
adjective

A late-Latin participle, confidens, trusting — borrowed into English in the sixteenth century. As a color modifier, confident implies saturation combined with poise: a confident red doesn't try too hard, just sits at the level of its hue without overreaching. Sits in the bold-bucket center near bold and resolute.

Plavi
noun

The Serbo-Croatian word for blue — used across Bosnia, Croatia, Serbia, and Montenegro for the saturated deep blue of Adriatic water and traditional folk-embroidery. The color refers to plavi embroidery thread on Croatian čilim rug: a saturated, slightly cool deep blue with the matte finish of dyed wool thread.

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.

#3f83fb
Original
#3e90ff
Protanopia
#007ff9
Deuteranopia
#00a0b3
Tritanopia
#7d7d7d
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
3.59:1
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
5.85:1

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