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Plunged Como

#1f3997
Notes

Plunged Como (#1F3997) is a true 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 (227°, 66%, 36%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1f3997
RGB
rgb(31, 57, 151)
HSL
hsl(227, 66%, 36%)
HWB
hwb(227 12% 41%)
OKLCH
oklch(38.9% 0.157 266.8)
HSV
hsv(227, 79%, 59%)
LAB
lab(27.98% 25.94 -54.20)
LCH
lch(27.98% 60.09 295.58)
CMYK
cmyk(79%, 62%, 0%, 41%)

Etymology

Plunged
adjective

Old French plonger, to plunge via Latin plumbicāre (to weight with lead) — past-participle of plunge. As a color modifier, plunged implies the deep-and-suddenly-deepened quality of a hue forced into darkness. Sits at the deep-and-rapid-shift end of the grid, parallel to submerged with kinetic register.

Como
noun

Lake Como — Lago di Como — in Lombardy, Italy. The deepest lake in Italy at 410 meters. Como color refers to mid-depth Lake Como water seen from Bellagio: a saturated, slightly cool deep blue with the optical depth of Alpine glacier-melt water.

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

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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.

#1f3997
Original
#00489a
Protanopia
#003d95
Deuteranopia
#005162
Tritanopia
#3a3a3a
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
10.05:1
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
2.09:1

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