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Antiquated Kona

#425f4a
Notes

Antiquated Kona (#425F4A) is a deep green 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 (137°, 18%, 32%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#425f4a
RGB
rgb(66, 95, 74)
HSL
hsl(137, 18%, 32%)
HWB
hwb(137 26% 63%)
OKLCH
oklch(45.6% 0.048 152.8)
P3
color(display-p3 0.2830 0.3694 0.2966)
HSV
hsv(137, 31%, 37%)
LAB
lab(37.55% -15.64 8.64)
LCH
lch(37.55% 17.87 151.09)
CMYK
cmyk(31%, 0%, 22%, 63%)

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.

Kona
noun

The leeward (western) coast of the Big Island of Hawaii — and the deep blue-green of Kona's Kealakekua Bay and Honaunau coves. Kona color refers to the bay water at midday: a saturated, slightly cool deep blue-green with the optical clarity of cold Pacific water against volcanic black-sand beaches.

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.

#425f4a
Original
#5f5a49
Protanopia
#5a574b
Deuteranopia
#3d5e59
Tritanopia
#575757
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).
AAAon White
7.08:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.97:1

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
##425F4A
Display P3
Display P3
color(display-p3 0.2830 0.3694 0.2966)
Inside sRGBOKLCH chroma 0.048

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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