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Plush Cerulean

#193b4a
Notes

Plush Cerulean (#193B4A) is a deep cyan 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 (198°, 49%, 19%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#193b4a
RGB
rgb(25, 59, 74)
HSL
hsl(198, 49%, 19%)
HWB
hwb(198 10% 71%)
OKLCH
oklch(33.4% 0.047 229.3)
P3
color(display-p3 0.1322 0.2283 0.2843)
HSV
hsv(198, 66%, 29%)
LAB
lab(23.10% -7.06 -12.89)
LCH
lch(23.10% 14.70 241.29)
CMYK
cmyk(66%, 20%, 0%, 71%)

Etymology

Plush
adjective

From the French peluche, long-haired fabric — borrowed into English in the seventeenth century for the deep-pile velvet imitation that became Victorian upholstery. As a color modifier, plush implies the optical depth that comes from a thick pile absorbing light: plush burgundy, plush emerald. Sits in the dark-and-saturated quadrant near velvet and deep.

Cerulean
noun

From the Latin caeruleum, originally referring to dark blue paint pigment of the Roman world, then via French céruléen into English. As a modern art-supply name, cerulean blue is the cobalt-tin oxide pigment introduced in 1805. The color refers to a clean, slightly green-shifted blue with the matte finish of mineral pigment in linseed oil: lighter than cobalt, deeper than aqua, with the painter's weight of a word for sky.

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.

#193b4a
Original
#333a4b
Protanopia
#2c354a
Deuteranopia
#003f40
Tritanopia
#353535
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
11.89:1
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
1.77:1

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
##193B4A
Display P3
Display P3
color(display-p3 0.1322 0.2283 0.2843)
Inside sRGBOKLCH chroma 0.047

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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