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Starched Blå

#375578
Notes

Starched Blå (#375578) 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 (212°, 37%, 34%) 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
#375578
RGB
rgb(55, 85, 120)
HSL
hsl(212, 37%, 34%)
HWB
hwb(212 22% 53%)
OKLCH
oklch(44.2% 0.068 253.1)
P3
color(display-p3 0.2415 0.3302 0.4593)
HSV
hsv(212, 54%, 47%)
LAB
lab(35.33% -0.20 -23.27)
LCH
lch(35.33% 23.27 269.50)
CMYK
cmyk(54%, 29%, 0%, 53%)

Etymology

Starched
adjective

Old English stercan, to stiffen — past-participle of starch. As a color modifier, starched implies a clear-and-stiff-and-formal quality, the crisp color of Edwardian-period formal-evening-shirt-and-collar starched-and-pressed dress-attire. Sits at the crisp-and-finished end of the grid, parallel to pressed and ironed in usage.

Blå
noun

The Scandinavian word for blue — used for the Dannebrog blå (Danish flag blue) and the saturated deep blue of Norwegian and Swedish folk costumes. The color refers to a Norwegian bunad embroidered detail: a saturated, slightly cool deep blue with the matte finish of dyed wool.

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.

#375578
Original
#47577a
Protanopia
#3f5077
Deuteranopia
#155d61
Tritanopia
#515151
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
7.68:1
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
2.73:1

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
##375578
Display P3
Display P3
color(display-p3 0.2415 0.3302 0.4593)
Inside sRGBOKLCH chroma 0.068

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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