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Withering Indaco

#5a657b
Notes

Withering Indaco (#5A657B) is a true 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 (220°, 15%, 42%) places it in the muted 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#5a657b
RGB
rgb(90, 101, 123)
HSL
hsl(220, 15%, 42%)
HWB
hwb(220 35% 52%)
OKLCH
oklch(50.6% 0.038 264.2)
P3
color(display-p3 0.3611 0.3947 0.4749)
HSV
hsv(220, 27%, 48%)
LAB
lab(42.63% 1.18 -13.68)
LCH
lch(42.63% 13.73 274.94)
CMYK
cmyk(27%, 18%, 0%, 52%)

Etymology

Withering
adjective

Old English wedrian, to expose to weather — present-participle of wither. As a color modifier, withering implies a hushed-and-drying-and-fading quality where the hue carries the visual register of Autumn-October-leaf-and-wildflower gradually-drying-and-fading color-amplitude. Sits at the hushed-and-fading end of the grid, parallel to wilted and fading in usage.

Indaco
noun

The Italian word for indigo — borrowed via Greek indikon (Indian thing). Indaco in Italian art vocabulary refers specifically to the deep-blue plant-dye pigment used in Italian Renaissance painting for the Marian mantles and aristocratic dress. The color refers to indaco pigment in tempera: a saturated, slightly cool deep blue. The Italian cousin of indigo.

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.

#5a657b
Original
#5e667c
Protanopia
#5b637a
Deuteranopia
#51696c
Tritanopia
#646464
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).
AAon White
5.86:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.58:1

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
##5A657B
Display P3
Display P3
color(display-p3 0.3611 0.3947 0.4749)
Inside sRGBOKLCH chroma 0.038

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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