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Inscribed Sintra

#63a9f3
Notes

Inscribed Sintra (#63A9F3) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (211°, 86%, 67%) 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
#63a9f3
RGB
rgb(99, 169, 243)
HSL
hsl(211, 86%, 67%)
HWB
hwb(211 39% 5%)
OKLCH
oklch(72.0% 0.130 251.3)
P3
color(display-p3 0.4530 0.6559 0.9294)
HSV
hsv(211, 59%, 95%)
LAB
lab(67.65% -0.45 -43.58)
LCH
lch(67.65% 43.58 269.41)
CMYK
cmyk(59%, 30%, 0%, 5%)

Etymology

Inscribed
adjective

Latin īnscrībere, to write upon — past-participle of inscribe. As a color modifier, inscribed implies a clear-and-text-or-pattern-cut quality, the crisp color of Roman-Imperial-period monumental-stone inscription-and-monumental-text incised-relief. Sits at the crisp-and-incised end of the grid, parallel to etched and engraved in usage.

Sintra
noun

The Portuguese palace town northwest of Lisbon — and the saturated blue of Pena Palace's Manueline tile facades and the deep Atlantic blue of the surrounding Serra de Sintra. The color refers to Pena Palace's blue-tile pavilion: a saturated, slightly cool deep blue with the high gloss of azulejo tile.

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.

#63a9f3
Original
#8aacf6
Protanopia
#779ef2
Deuteranopia
#00bac3
Tritanopia
#9f9f9f
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
2.47:1
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
8.50:1

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
##63A9F3
Display P3
Display P3
color(display-p3 0.4530 0.6559 0.9294)
P3 has subtle headroomOKLCH chroma 0.130

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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