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Booming Bliss Royal

#4576ee
Notes

Booming Bliss Royal (#4576EE) 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 (223°, 83%, 60%) 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
#4576ee
RGB
rgb(69, 118, 238)
HSL
hsl(223, 83%, 60%)
HWB
hwb(223 27% 7%)
OKLCH
oklch(59.7% 0.189 264.6)
HSV
hsv(223, 71%, 93%)
LAB
lab(52.28% 23.30 -65.36)
LCH
lch(52.28% 69.39 289.62)
CMYK
cmyk(71%, 50%, 0%, 7%)

Etymology

Booming
adjective

Imitative-onomatopoeic origin — present-participle of boom, sharing root with Dutch bommen. As a color modifier, booming implies a saturated-and-loud-and-confident quality where the hue announces itself with full visual amplitude. Sits at the bold-and-resonant end of the grid, parallel to resounding and thunderous.

Bliss
modifier

Old English blīths, joy-or-delight. As a color modifier, bliss implies a deep-joy-and-rapture-and-contentment quality, the visual register of Beatific-Vision-and-Elysian-Field-bliss hand-deep-joy-and-rapture-and-contentment Beatific-Vision-and-Elysian-Field-and-paradise-meadow blissed-and-deep-joy-and-rapture surfaces under Beatific-Vision-and-Elysian-Field-and-paradise-meadow heavenly-and-rapturous-and-blessed paradise-light. Sits at the modifier-and-mood end of the grid, parallel to joy and mirth in usage.

Royal
noun

The blue of European royal court dress and regalia from the late seventeenth century forward — the color of British peers' robes, French royal sashes, the lining of the crown-jewel cases. The color refers to a saturated, slightly violet-shifted blue with the matte finish of velvet or melton wool dyed to maximum intensity: deeper than cornflower, warmer than ultramarine, with the heraldic weight of a color reserved for monarchs and the official Crown.

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.

#4576ee
Original
#2b85f2
Protanopia
#0075ec
Deuteranopia
#0093a7
Tritanopia
#747474
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
4.13:1
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
5.08:1

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