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Drenched Polemonium

#183c94
Notes

Drenched Polemonium (#183C94) 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 (223°, 72%, 34%) 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
#183c94
RGB
rgb(24, 60, 148)
HSL
hsl(223, 72%, 34%)
HWB
hwb(223 9% 42%)
OKLCH
oklch(39.0% 0.151 263.8)
P3
color(display-p3 0.1310 0.2321 0.5593)
HSV
hsv(223, 84%, 58%)
LAB
lab(28.28% 22.01 -51.88)
LCH
lch(28.28% 56.36 292.99)
CMYK
cmyk(84%, 59%, 0%, 42%)

Etymology

Drenched
adjective

Old English drencan, to give to drink — past-participle of drench. As a color modifier, drenched implies a hue saturated to its visual maximum without dilution, the deep-and-soaked quality of cloth fully absorbed by dye. Sits at the deep-and-saturated end of the grid, where the color reads as fully bathed by pigment.

Polemonium
noun

The genus PolemoniumJacob's ladder, the European and North American rock-garden perennial whose pinnate ladder-shaped foliage and clusters of blue flowers appear in late spring. The color refers to a fresh P. caeruleum in flower: a saturated, slightly cool deep blue with the matte finish of small five-petaled bell-shaped flower.

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.

#183c94
Original
#004997
Protanopia
#003d92
Deuteranopia
#005262
Tritanopia
#3b3b3b
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
9.94:1
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
2.11:1

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
##183C94
Display P3
Display P3
color(display-p3 0.1310 0.2321 0.5593)
P3 has subtle headroomOKLCH chroma 0.151

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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