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Noble Mirth Royal

#406bdc
Notes

Noble Mirth Royal (#406BDC) 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°, 69%, 56%) 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
#406bdc
RGB
rgb(64, 107, 220)
HSL
hsl(223, 69%, 56%)
HWB
hwb(223 25% 14%)
OKLCH
oklch(56.0% 0.179 265.3)
P3
color(display-p3 0.2898 0.4153 0.8341)
HSV
hsv(223, 71%, 86%)
LAB
lab(47.97% 23.07 -62.21)
LCH
lch(47.97% 66.35 290.35)
CMYK
cmyk(71%, 51%, 0%, 14%)

Etymology

Noble
adjective

Latin nōbilis, well-known / illustrious — sharing root with gnōscere (to know). As a color modifier, noble implies a saturated-and-dignified-and-aristocratic quality, the deep-rich color of pre-modern European noble-class hereditary-aristocratic livery-and-armorial bearings. Sits at the bold-and-aristocratic end of the grid, parallel to aristocratic and highborn in usage.

Mirth
modifier

Old English myrgth, joy-or-pleasure. As a color modifier, mirth implies a hearty-and-laughing-and-festive quality, the visual register of Twelfth-Night-and-Mardi-Gras-mirth hand-hearty-and-laughing-and-festive Twelfth-Night-and-Mardi-Gras-and-Saturnalia mirthed-and-hearty-and-laughing-and-festive surfaces under Twelfth-Night-and-Mardi-Gras-and-Saturnalia banquet-hall-and-festival-square candlelit-revelry-light. Sits at the modifier-and-mood end of the grid, parallel to glee and merry 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.

#406bdc
Original
#2279e0
Protanopia
#006bda
Deuteranopia
#008699
Tritanopia
#6a6a6a
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).
AAon White
4.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.35:1

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
##406BDC
Display P3
Display P3
color(display-p3 0.2898 0.4153 0.8341)
P3 has subtle headroomOKLCH chroma 0.179

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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