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Polite Earth

#535a73
Notes

Polite Earth (#535A73) 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 (227°, 16%, 39%) 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
#535a73
RGB
rgb(83, 90, 115)
HSL
hsl(227, 16%, 39%)
HWB
hwb(227 33% 55%)
OKLCH
oklch(47.1% 0.041 272.5)
P3
color(display-p3 0.3306 0.3521 0.4429)
HSV
hsv(227, 28%, 45%)
LAB
lab(38.53% 3.46 -15.09)
LCH
lch(38.53% 15.48 282.93)
CMYK
cmyk(28%, 22%, 0%, 55%)

Etymology

Polite
adjective

Latin polītus, polished — sharing root with polish. As a color modifier, polite implies a hushed-and-courteous-and-restrained quality where the hue carries the visual register of Edwardian-period courteous-and-formal-and-restrained interior-decoration. Sits at the hushed-and-restrained end of the grid, parallel to demure and discreet in usage.

Earth
noun

The third planet from the Sun — and the saturated deep blue of Earth seen from space, the pale blue dot of Carl Sagan's Voyager-1 image. Earth color refers to the average reflectance of Earth seen from low orbit: a saturated, slightly cool deep blue with the optical complexity of ocean-and-cloud-and-atmosphere reflectance.

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.

#535a73
Original
#535c74
Protanopia
#505a72
Deuteranopia
#4b5f62
Tritanopia
#5a5a5a
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
6.82:1
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
3.08:1

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
##535A73
Display P3
Display P3
color(display-p3 0.3306 0.3521 0.4429)
Inside sRGBOKLCH chroma 0.041

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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