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Bespoke Squall

#091528
Notes

Bespoke Squall (#091528) is a deep azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (217°, 63%, 10%) 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
#091528
RGB
rgb(9, 21, 40)
HSL
hsl(217, 63%, 10%)
HWB
hwb(217 4% 84%)
OKLCH
oklch(19.6% 0.042 259.2)
P3
color(display-p3 0.0459 0.0811 0.1513)
HSV
hsv(217, 78%, 16%)
LAB
lab(6.75% 2.18 -14.50)
LCH
lch(6.75% 14.66 278.54)
CMYK
cmyk(78%, 47%, 0%, 84%)

Etymology

Bespoke
adjective

Old English be- (about) plus sprecan (to speak) — past-participle of bespeak. As a color modifier, bespoke implies a neutral-and-custom-made-and-tailored quality, the neutral color of Savile-Row-tailoring custom-made-and-hand-tailored gentleman's-suit-and-shirtmaking craft-finish. Sits at the neutral-and-traditional end of the grid, parallel to custom and tailored in usage.

Squall
noun

Old Norse skvala, to splash — the deep-gray short-duration intense-rain-and-wind weather front, particularly the line-squall preceding a cold-front passage. Squall color refers to a line-squall approaching the New England coast in late November: a dark cool-gray with the optical complexity of cumulonimbus-front-and-rain-sheet light against the Stellwagen Bank horizon.

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.

#091528
Original
#0d1729
Protanopia
#091428
Deuteranopia
#00191c
Tritanopia
#141414
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
18.27:1
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
1.15:1

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
##091528
Display P3
Display P3
color(display-p3 0.0459 0.0811 0.1513)
Inside sRGBOKLCH chroma 0.042

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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