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Tucked Chicago

#31418e
Notes

Tucked Chicago (#31418E) is a true blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (230°, 49%, 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#31418e
RGB
rgb(49, 65, 142)
HSL
hsl(230, 49%, 37%)
HWB
hwb(230 19% 44%)
OKLCH
oklch(40.7% 0.128 270.8)
P3
color(display-p3 0.2049 0.2531 0.5377)
HSV
hsv(230, 65%, 56%)
LAB
lab(30.37% 19.61 -44.76)
LCH
lch(30.37% 48.87 293.66)
CMYK
cmyk(65%, 54%, 0%, 44%)

Etymology

Tucked
adjective

Old English tūcian, to torment / pull — past-participle of tuck. As a color modifier, tucked implies a clear-and-fitted-and-arranged quality where the hue carries the visual register of carefully-tucked-and-neatly-fitted shirt-into-trouser dress-attire. Sits at the crisp-and-finished end of the grid, parallel to trim and pressed in usage.

Chicago
noun

The American Midwestern city on Lake Michigan — and the deep blue of Lake Michigan, the Chicago city flag (four red stars on white-and-blue field), and the Chicago Bears NFL team uniform. Chicago refers to Lake Michigan from the Lakefront Trail at midday: a saturated, slightly cool deep blue.

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.

#31418e
Original
#0f4c91
Protanopia
#00448c
Deuteranopia
#005361
Tritanopia
#434343
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
9.22:1
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
2.28:1

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
##31418E
Display P3
Display P3
color(display-p3 0.2049 0.2531 0.5377)
P3 has subtle headroomOKLCH chroma 0.128

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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