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Workmanlike Saint-Petersburg

#035a8a
Notes

Workmanlike Saint-Petersburg (#035A8A) is a deep 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 (201°, 96%, 28%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#035a8a
RGB
rgb(3, 90, 138)
HSL
hsl(201, 96%, 28%)
HWB
hwb(201 1% 46%)
OKLCH
oklch(44.8% 0.106 242.3)
P3
color(display-p3 0.1469 0.3473 0.5259)
HSV
hsv(201, 98%, 54%)
LAB
lab(36.30% -3.79 -32.90)
LCH
lch(36.30% 33.12 263.43)
CMYK
cmyk(98%, 35%, 0%, 46%)

Etymology

Workmanlike
adjective

Old English weorcmann, workman — adjectival suffix -like. As a color modifier, workmanlike implies a clear-and-skilled-and-honest quality where the hue carries the visual register of journeyman-craftsman careful-and-competent hand-built craft. Sits at the crisp-and-functional end of the grid, parallel to functional and practical in usage.

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.

#035a8a
Original
#435b8c
Protanopia
#315089
Deuteranopia
#00666b
Tritanopia
#4b4b4b
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
7.41:1
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
2.83:1

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
##035A8A
Display P3
Display P3
color(display-p3 0.1469 0.3473 0.5259)
P3 has subtle headroomOKLCH chroma 0.106

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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