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Tactful Cascade

#658f91
Notes

Tactful Cascade (#658F91) 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 (183°, 18%, 48%) 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
#658f91
RGB
rgb(101, 143, 145)
HSL
hsl(183, 18%, 48%)
HWB
hwb(183 40% 43%)
OKLCH
oklch(62.0% 0.046 199.8)
P3
color(display-p3 0.4312 0.5563 0.5657)
HSV
hsv(183, 30%, 57%)
LAB
lab(56.54% -13.81 -5.70)
LCH
lch(56.54% 14.94 202.42)
CMYK
cmyk(30%, 1%, 0%, 43%)

Etymology

Tactful
adjective

Latin tāctus, touch — adjectival suffix -ful. As a color modifier, tactful implies a hushed-and-careful-and-considerate quality where the hue carries the visual register of careful-and-considerate-and-restrained color-decision design-element. Sits at the hushed-and-restrained end of the grid, parallel to discreet and diplomatic in usage.

Cascade
noun

A waterfall of moderate size — particularly the Cascade Range of waterfalls along the Pacific Northwest's Columbia River Gorge. Cascade color refers to the white-and-blue of falling water at Multnomah Falls: a soft, slightly cool pale blue-white with the optical complexity of mist-and-water in motion.

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.

#658f91
Original
#898b91
Protanopia
#818591
Deuteranopia
#55928f
Tritanopia
#868686
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).
AA Largeon White
3.56:1
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
5.89:1

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
##658F91
Display P3
Display P3
color(display-p3 0.4312 0.5563 0.5657)
Inside sRGBOKLCH chroma 0.046

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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