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Opulent Bachelorbutton

#3347ad
Notes

Opulent Bachelorbutton (#3347AD) is a true blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (230°, 54%, 44%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#3347ad
RGB
rgb(51, 71, 173)
HSL
hsl(230, 54%, 44%)
HWB
hwb(230 20% 32%)
OKLCH
oklch(44.5% 0.164 270.0)
HSV
hsv(230, 71%, 68%)
LAB
lab(34.45% 27.37 -56.88)
LCH
lch(34.45% 63.13 295.70)
CMYK
cmyk(71%, 59%, 0%, 32%)

Etymology

Opulent
adjective

Latin opulentus, rich / wealthy — derived from ops (wealth). As a color modifier, opulent implies a saturated-and-luxurious quality, the deep-rich color of Belle-Époque and Gilded-Age interior-decoration silk-and-velvet textiles. Sits at the bold-and-saturated end of the grid, parallel to lavish and sumptuous.

Bachelorbutton
noun

Centaurea cyanus, the cultivar of cornflower bred for cottage-garden use — also called bachelor's button for its traditional use in the buttonhole of an unmarried man's coat. The color refers to a fresh bachelor's button bloom in summer: a saturated, slightly cool deep blue with the matte finish of small clustered ray-and-disc-florets.

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.

#3347ad
Original
#0057b0
Protanopia
#004cab
Deuteranopia
#006073
Tritanopia
#4a4a4a
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).
AAAon White
7.94:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.65:1

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