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Spartan Stoa Royal

#1863da
Notes

Spartan Stoa Royal (#1863DA) 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 (217°, 80%, 47%) 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
#1863da
RGB
rgb(24, 99, 218)
HSL
hsl(217, 80%, 47%)
HWB
hwb(217 9% 15%)
OKLCH
oklch(52.9% 0.196 260.1)
P3
color(display-p3 0.1886 0.3825 0.8253)
HSV
hsv(217, 89%, 85%)
LAB
lab(44.49% 23.67 -66.78)
LCH
lch(44.49% 70.85 289.52)
CMYK
cmyk(89%, 55%, 0%, 15%)

Etymology

Spartan
adjective

Greek Spartiátēs, of Sparta — adjectival suffix referring to the Lacedaemonian warrior city. As a color modifier, spartan implies a saturated-and-disciplined-and-formal quality, the deep-rich color of Spartan-hoplite military-class crimson-and-bronze armor-and-cloak. Sits at the bold-and-formal end of the grid, parallel to austere and stern in tone.

Stoa
modifier

Greek stoa, Greek-colonnaded-walkway. As a color modifier, stoa implies a Greek-and-Athens-colonnaded-walkway quality, the visual register of Athenian-Stoa-of-Attalos hand-built colonnaded-walkway-and-marketplace stoa-and-arcade-and-bouleuterion classical-Greek architectural surfaces under Athenian-Stoa-of-Attalos colonnaded-walkway light. Sits at the modifier-and-architecture end of the grid, parallel to agora and forum 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.

#1863da
Original
#0072de
Protanopia
#0061d8
Deuteranopia
#008195
Tritanopia
#5c5c5c
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
5.47:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.84:1

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
##1863DA
Display P3
Display P3
color(display-p3 0.1886 0.3825 0.8253)
P3 has visible headroomOKLCH chroma 0.196

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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