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Anchored Saint-Petersburg

#1a5ba3
Notes

Anchored Saint-Petersburg (#1A5BA3) is a true azure 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 (212°, 72%, 37%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1a5ba3
RGB
rgb(26, 91, 163)
HSL
hsl(212, 72%, 37%)
HWB
hwb(212 10% 36%)
OKLCH
oklch(47.1% 0.133 254.4)
P3
color(display-p3 0.1795 0.3517 0.6190)
HSV
hsv(212, 84%, 64%)
LAB
lab(38.45% 7.28 -44.50)
LCH
lch(38.45% 45.09 279.29)
CMYK
cmyk(84%, 44%, 0%, 36%)

Etymology

Anchored
adjective

The past participle of anchor, used since the late nineteenth century as a metaphor for secured in place. As a color word, anchored implies a deep saturated tone that grounds a palette — the dark blues, deep greens, and browns that hold a composition together. Sits in the bold-and-deep corner of the grid alongside solid.

Saint-Petersburg
noun

The Russian Baltic city founded by Peter the Great — and the deep blue of the Neva River, the Hermitage Imperial palace's Catherine Hall, and the Imperial Navy uniforms based here. Saint-Petersburg color refers to a Catherine Hall blue-and-gold interior: a saturated, slightly cool deep blue with the matte finish of distemper-painted plaster.

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.

#1a5ba3
Original
#3661a6
Protanopia
#1a55a2
Deuteranopia
#006c77
Tritanopia
#525252
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
6.84:1
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
3.07:1

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
##1A5BA3
Display P3
Display P3
color(display-p3 0.1795 0.3517 0.6190)
P3 has subtle headroomOKLCH chroma 0.133

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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