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Flamboyant Goluboy

#4d99e9
Notes

Flamboyant Goluboy (#4D99E9) 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 (211°, 78%, 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
#4d99e9
RGB
rgb(77, 153, 233)
HSL
hsl(211, 78%, 61%)
HWB
hwb(211 30% 9%)
OKLCH
oklch(67.1% 0.141 251.7)
P3
color(display-p3 0.3774 0.5930 0.8892)
HSV
hsv(211, 67%, 91%)
LAB
lab(61.86% 1.59 -47.26)
LCH
lch(61.86% 47.28 271.93)
CMYK
cmyk(67%, 34%, 0%, 9%)

Etymology

Flamboyant
adjective

French flamboyant, flaming — present-participle of flamboyer, derived from flambe (flame). As a color modifier, flamboyant implies a saturated-and-attention-grabbing-and-elaborate quality, the bright color of Late-Gothic-and-Rococo highly-decorative-architectural ornament. Sits at the bright-and-flamboyant end of the grid, parallel to showy and ostentatious in usage.

Goluboy
noun

The Russian word for light blue — distinct from sinii (deep blue) in Russian color vocabulary, which (uniquely among major languages) names two separate basic blue categories. The color refers to a goluboy-painted Russian dacha shutter: a soft, slightly cool pale blue with the matte finish of weathered linseed-oil paint.

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.

#4d99e9
Original
#769eec
Protanopia
#5f8fe7
Deuteranopia
#00acb6
Tritanopia
#8f8f8f
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
2.98:1
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
7.05:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##4D99E9
Display P3
Display P3
color(display-p3 0.3774 0.5930 0.8892)
P3 has subtle headroomOKLCH chroma 0.141

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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