colors
Back to gallery

Cellared Kabud

#1b3c5d
Notes

Cellared Kabud (#1B3C5D) is a deep azure 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 (210°, 55%, 24%) 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
#1b3c5d
RGB
rgb(27, 60, 93)
HSL
hsl(210, 55%, 24%)
HWB
hwb(210 11% 64%)
OKLCH
oklch(34.9% 0.070 250.5)
P3
color(display-p3 0.1383 0.2322 0.3544)
HSV
hsv(210, 71%, 36%)
LAB
lab(24.50% -0.01 -23.22)
LCH
lch(24.50% 23.22 269.96)
CMYK
cmyk(71%, 35%, 0%, 64%)

Etymology

Cellared
adjective

Latin cellārium, storehouse — past-participle of cellar. As a color modifier, cellared implies the deep-and-cool-and-architectural quality of Bordeaux-and-Burgundy wine-cellar underground stone-and-oak storage-chamber, with the patina of multi-decade barrel-aging-and-bottle-laying. Sits at the deep-and-architectural end of the grid, parallel to crypted with viticulture register.

Kabud
noun

The Arabic word for blue — used in classical Arabic poetry for the blue of the sea, the sky, and Persian-tile mosques. Kabud spans the deep azure-blue range distinct from azraq (sky-blue) and neel (indigo). The color refers to the kabud-glazed dome of the Imam Mosque at Isfahan: a saturated, slightly cool deep blue with the high gloss of fired faience.

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.

#1b3c5d
Original
#2e3e5e
Protanopia
#24375c
Deuteranopia
#004448
Tritanopia
#373737
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
11.35:1
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
1.85:1

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
##1B3C5D
Display P3
Display P3
color(display-p3 0.1383 0.2322 0.3544)
Inside sRGBOKLCH chroma 0.070

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.

Related Colors

Canvas