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Tomblike Vladivostok

#031b40
Notes

Tomblike Vladivostok (#031B40) 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 (216°, 91%, 13%) 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
#031b40
RGB
rgb(3, 27, 64)
HSL
hsl(216, 91%, 13%)
HWB
hwb(216 1% 75%)
OKLCH
oklch(23.0% 0.077 258.4)
P3
color(display-p3 0.0348 0.1038 0.2414)
HSV
hsv(216, 95%, 25%)
LAB
lab(10.36% 7.61 -26.20)
LCH
lch(10.36% 27.28 286.20)
CMYK
cmyk(95%, 58%, 0%, 75%)

Etymology

Tomblike
adjective

Greek tymbos, tomb — adjectival suffix -like. As a color modifier, tomblike implies the deep-and-funereal-and-sepulchral quality of Etruscan-and-Egyptian rock-cut royal-tomb interiors, particularly the Valley-of-the-Kings and Cerveteri-necropolis hand-carved chamber-painting walls. Sits at the deep-and-funereal end of the grid, parallel to sepulchral and crypted.

Vladivostok
noun

The Russian Pacific Far East port city — and the saturated deep blue of Amursky Bay and Vladivostok Harbor on the Sea of Japan. Vladivostok refers to the harbor water at midday: a saturated, slightly cool deep blue with the optical depth of cold-water Pacific port.

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.

#031b40
Original
#041f41
Protanopia
#001a3f
Deuteranopia
#00242a
Tritanopia
#191919
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
17.01:1
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
1.23:1

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
##031B40
Display P3
Display P3
color(display-p3 0.0348 0.1038 0.2414)
Inside sRGBOKLCH chroma 0.077

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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