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Royal Lazulite

#1590ee
Notes

Royal Lazulite (#1590EE) 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 (206°, 86%, 51%) 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
#1590ee
RGB
rgb(21, 144, 238)
HSL
hsl(206, 86%, 51%)
HWB
hwb(206 8% 7%)
OKLCH
oklch(64.0% 0.171 249.1)
HSV
hsv(206, 91%, 93%)
LAB
lab(58.30% 3.11 -55.76)
LCH
lch(58.30% 55.84 273.19)
CMYK
cmyk(91%, 39%, 0%, 7%)

Etymology

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.

Lazulite
noun

A magnesium-iron-aluminum phosphate mineral — distinct from lapis lazuli despite the etymological cousin. Mined principally in Yukon Territory (Canada) and Madagascar. The color refers to a polished lazulite cabochon: a saturated, slightly cool deep blue with the matte finish of opaque phosphate mineral.

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.

#1590ee
Original
#6196f2
Protanopia
#3e84ec
Deuteranopia
#00a7b3
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
3.36:1
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
6.26:1

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