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Antiquated Frost

#426468
Notes

Antiquated Frost (#426468) is a deep 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 (186°, 22%, 33%) places it in the muted band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#426468
RGB
rgb(66, 100, 104)
HSL
hsl(186, 22%, 33%)
HWB
hwb(186 26% 59%)
OKLCH
oklch(47.9% 0.040 205.2)
P3
color(display-p3 0.2880 0.3886 0.4047)
HSV
hsv(186, 37%, 41%)
LAB
lab(40.03% -11.11 -6.17)
LCH
lch(40.03% 12.71 209.06)
CMYK
cmyk(37%, 4%, 0%, 59%)

Etymology

Antiquated
adjective

Latin antīquātus, made old — past-participle of antiquate. As a color modifier, antiquated implies a hushed-and-old-fashioned-and-faded quality where the hue carries the visual register of Edwardian-period faded-and-out-of-fashion period-correct color. Sits at the hushed-and-aged end of the grid, parallel to vintage and antique in usage.

Frost
noun

The ice crystals that condense from atmospheric moisture onto cold surfaces — windowpanes, leaves, the windshield of a parked car at dawn. The color is barely a color: a very pale, slightly green-shifted blue with the optical brightness of micron-scale crystals scattering light. Lighter than glacier, warmer than ice, with the agricultural-calendar weight of a phenomenon that defines the growing season.

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.

#426468
Original
#5f6168
Protanopia
#585c68
Deuteranopia
#346765
Tritanopia
#5d5d5d
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
6.45:1
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
3.25:1

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
##426468
Display P3
Display P3
color(display-p3 0.2880 0.3886 0.4047)
Inside sRGBOKLCH chroma 0.040

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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