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Smouldered Udaipur

#181c37
Notes

Smouldered Udaipur (#181C37) is a deep 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 (232°, 39%, 15%) 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
#181c37
RGB
rgb(24, 28, 55)
HSL
hsl(232, 39%, 15%)
HWB
hwb(232 9% 78%)
OKLCH
oklch(23.8% 0.052 275.4)
P3
color(display-p3 0.0971 0.1093 0.2084)
HSV
hsv(232, 56%, 22%)
LAB
lab(11.28% 7.31 -18.25)
LCH
lch(11.28% 19.66 291.84)
CMYK
cmyk(56%, 49%, 0%, 78%)

Etymology

Smouldered
adjective

From Old English smolderian, to burn slowly — past-participle of smoulder. As a color modifier, smouldered implies the deep glowing-dark quality of fire-warmed embers, where the underlying hue retains warmth even at low lightness. Sits at the deep-and-warm end of the grid, somewhere between charred and burnt.

Udaipur
noun

The Rajput City of Lakes in Mewar, Rajasthan — home of the Mewar court whose miniature paintings used ultramarine (powdered Afghan lapis) and indigo for the deep skies and royal robes. Udaipur color refers to a Mewar-school 17th-century miniature's lapis-and-indigo sky field: a saturated, slightly cool deep blue-violet with the matte finish of mineral ultramarine on hand-prepared vasli paper.

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.

#181c37
Original
#111f38
Protanopia
#0f1d36
Deuteranopia
#0c2226
Tritanopia
#1d1d1d
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
16.67:1
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
1.26:1

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
##181C37
Display P3
Display P3
color(display-p3 0.0971 0.1093 0.2084)
Inside sRGBOKLCH chroma 0.052

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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