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Fathomless Udaipur

#383d7b
Notes

Fathomless Udaipur (#383D7B) 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 (236°, 37%, 35%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#383d7b
RGB
rgb(56, 61, 123)
HSL
hsl(236, 37%, 35%)
HWB
hwb(236 22% 52%)
OKLCH
oklch(38.9% 0.104 277.0)
P3
color(display-p3 0.2232 0.2386 0.4666)
HSV
hsv(236, 54%, 48%)
LAB
lab(28.40% 16.93 -36.09)
LCH
lch(28.40% 39.87 295.13)
CMYK
cmyk(54%, 50%, 0%, 52%)

Etymology

Fathomless
adjective

Fathom (Old English fæthm, six-foot span used to measure water-depth) plus suffix -less. As a color modifier, fathomless implies a depth of saturation-and-darkness that resists the eye's attempt to gauge it. Sits at the deepest end of the deep-bucket grid, beyond ordinary measure of color-depth perception.

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.

#383d7b
Original
#20467d
Protanopia
#19407a
Deuteranopia
#1b4b56
Tritanopia
#404040
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
9.90:1
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
2.12:1

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
##383D7B
Display P3
Display P3
color(display-p3 0.2232 0.2386 0.4666)
P3 has subtle headroomOKLCH chroma 0.104

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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