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Pillowed Hawkseye

#647b7a
Notes

Pillowed Hawkseye (#647B7A) is a true cyan 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 (177°, 10%, 44%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#647b7a
RGB
rgb(100, 123, 122)
HSL
hsl(177, 10%, 44%)
HWB
hwb(177 39% 52%)
OKLCH
oklch(56.4% 0.027 193.2)
P3
color(display-p3 0.4100 0.4797 0.4774)
HSV
hsv(177, 19%, 48%)
LAB
lab(49.83% -8.55 -2.23)
LCH
lch(49.83% 8.84 194.63)
CMYK
cmyk(19%, 0%, 1%, 52%)

Etymology

Pillowed
adjective

Old English pyle, pillow — past-participle of pillow. As a color modifier, pillowed implies a hushed-and-cushioned-and-soft quality where the hue carries the visual register of Anglo-Saxon and Norman down-stuffed-and-pillowed bedding-textile soft-finish. Sits at the hushed-and-soft end of the grid, parallel to cushioned and padded in usage.

Hawkseye
noun

A blue-gray variety of tigereye quartz — colored by crocidolite asbestos inclusions that scatter light into a chatoyant band like the eye of a raptor. The color refers to a polished Hawkseye cabochon: a soft, slightly cool deep blue-gray with the optical complexity of chatoyant silicate fibers.

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.

#647b7a
Original
#78797a
Protanopia
#73757a
Deuteranopia
#5d7c7b
Tritanopia
#767676
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
4.51:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.66:1

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
##647B7A
Display P3
Display P3
color(display-p3 0.4100 0.4797 0.4774)
Inside sRGBOKLCH chroma 0.027

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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