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Smouldered Samarkand

#251a45
Notes

Smouldered Samarkand (#251A45) is a deep indigo 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 (255°, 45%, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#251a45
RGB
rgb(37, 26, 69)
HSL
hsl(255, 45%, 19%)
HWB
hwb(255 10% 73%)
OKLCH
oklch(25.7% 0.078 291.8)
P3
color(display-p3 0.1384 0.1037 0.2607)
HSV
hsv(255, 62%, 27%)
LAB
lab(13.00% 17.65 -25.32)
LCH
lch(13.00% 30.87 304.88)
CMYK
cmyk(46%, 62%, 0%, 73%)

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.

Samarkand
noun

Central Asian Silk Road city in Uzbekistan — capital of Tamerlane's Timurid empire and home of the Registan madrasa complex with its iconic deep-blue tilework. Samarkand color refers to the deep-blue muqarnas vault of the Registan's Tilya-Kori madrasa: a saturated, slightly cool deep blue-violet with the glossy finish of cobalt-and-lazurite-glazed kashin tiles. Slightly warmer than Bukhara.

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.

#251a45
Original
#052246
Protanopia
#072144
Deuteranopia
#1c232c
Tritanopia
#1f1f1f
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
16.00:1
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
1.31:1

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
##251A45
Display P3
Display P3
color(display-p3 0.1384 0.1037 0.2607)
Inside sRGBOKLCH chroma 0.078

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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