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Vaulted Saxon

#153099
Notes

Vaulted Saxon (#153099) is a deep blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (228°, 76%, 34%) places it in the highly saturated band at a dark 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
#153099
RGB
rgb(21, 48, 153)
HSL
hsl(228, 76%, 34%)
HWB
hwb(228 8% 40%)
OKLCH
oklch(37.0% 0.173 266.0)
P3
color(display-p3 0.1086 0.1857 0.5770)
HSV
hsv(228, 86%, 60%)
LAB
lab(25.48% 31.92 -59.54)
LCH
lch(25.48% 67.56 298.20)
CMYK
cmyk(86%, 69%, 0%, 40%)

Etymology

Vaulted
adjective

Old French voulte, vault via Latin volūta (rolled) — past-participle of vault. As a color modifier, vaulted implies the deep-and-architectural-and-Gothic quality of Salisbury-Cathedral-and-Chartres-Cathedral nave-vault overhead-stone-arched ceiling. Sits at the deep-and-architectural end of the grid, parallel to cavernous with cathedral-vault register.

Saxon
noun

Saxon blue — a sulfuric-acid extraction of indigo developed in eighteenth-century Saxony that produced a brighter, slightly green-shifted blue than traditional indigo vat dyeing. The color refers to a Saxon-blue dyed wool: a saturated, slightly green-shifted deep blue with the matte finish of dyed natural fiber. Brighter than indigo, cooler than royal, with the textile-history weight of an industrial-process pigment that briefly competed with traditional indigo.

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.

#153099
Original
#00439c
Protanopia
#003697
Deuteranopia
#004d60
Tritanopia
#323232
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).
AAAon White
10.97:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.91:1

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
##153099
Display P3
Display P3
color(display-p3 0.1086 0.1857 0.5770)
P3 has subtle headroomOKLCH chroma 0.173

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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