colors
Back to gallery

Trustworthy Khiva

#666699
Notes

Trustworthy Khiva (#666699) is a true blue 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 (240°, 20%, 50%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#666699
RGB
rgb(102, 102, 153)
HSL
hsl(240, 20%, 50%)
HWB
hwb(240 40% 40%)
OKLCH
oklch(53.2% 0.079 283.4)
P3
color(display-p3 0.4000 0.4000 0.5855)
HSV
hsv(240, 33%, 60%)
LAB
lab(45.12% 12.51 -27.75)
LCH
lch(45.12% 30.44 294.27)
CMYK
cmyk(33%, 33%, 0%, 40%)

Etymology

Trustworthy
adjective

Old English trēow, trust — adjectival suffix -worthy. As a color modifier, trustworthy implies a clear-and-reliable-and-honest quality where the hue carries the visual register of confidence-deserving-and-faithful-performance design-element. Sits at the crisp-and-honest end of the grid, parallel to reliable and dependable in usage.

Khiva
noun

Ancient Khanate of Central Asia, on the Silk Road in modern Uzbekistan — its old-walled inner-city Itchan Kala remains a living complex of indigo-and-turquoise-tiled medreseh and minaret façades. Khiva color refers to the deep-blue tilework of the Islam Khoja minaret in Itchan Kala: a saturated, slightly cool deep blue-violet with the glossy finish of cobalt-glazed Khwarezmian ceramic tile under the high desert sun.

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.

#666699
Original
#576c9b
Protanopia
#556998
Deuteranopia
#596f78
Tritanopia
#6a6a6a
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
5.35:1
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
3.93:1

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
##666699
Display P3
Display P3
color(display-p3 0.4000 0.4000 0.5855)
Inside sRGBOKLCH chroma 0.079

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.

Related Colors

Canvas