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Macabre Chicago

#18336f
Notes

Macabre Chicago (#18336F) 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 (221°, 64%, 26%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#18336f
RGB
rgb(24, 51, 111)
HSL
hsl(221, 64%, 26%)
HWB
hwb(221 9% 56%)
OKLCH
oklch(33.8% 0.109 263.4)
P3
color(display-p3 0.1199 0.1974 0.4200)
HSV
hsv(221, 78%, 44%)
LAB
lab(22.69% 13.17 -37.77)
LCH
lch(22.69% 40.00 289.23)
CMYK
cmyk(78%, 54%, 0%, 56%)

Etymology

Macabre
adjective

French macabre, possibly from Macabre (the medieval Danse Macabre) or Hebrew meqabber (gravedigger). As a color modifier, macabre implies a deep-and-funereal-and-uncanny quality, the dark cool-gray of medieval-and-Victorian memento-mori iconography. Sits at the deep-and-funereal end of the grid, parallel to funereal with uncanny-and-grotesque overtone.

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.

#18336f
Original
#0c3a71
Protanopia
#00326e
Deuteranopia
#00414b
Tritanopia
#323232
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
12.06:1
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
1.74:1

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
##18336F
Display P3
Display P3
color(display-p3 0.1199 0.1974 0.4200)
P3 has subtle headroomOKLCH chroma 0.109

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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