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Patinated Turquoise

#365b5b
Notes

Patinated Turquoise (#365B5B) 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 (180°, 26%, 28%) 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
#365b5b
RGB
rgb(54, 91, 91)
HSL
hsl(180, 26%, 28%)
HWB
hwb(180 21% 64%)
OKLCH
oklch(44.4% 0.042 195.7)
P3
color(display-p3 0.2450 0.3532 0.3550)
HSV
hsv(180, 41%, 36%)
LAB
lab(36.03% -13.18 -4.18)
LCH
lch(36.03% 13.82 197.59)
CMYK
cmyk(41%, 0%, 0%, 64%)

Etymology

Patinated
adjective

Italian patina, pan / shallow dish — past-participle of patinate. As a color modifier, patinated implies a hushed-and-aged-surface quality where the hue carries multi-decade oxidation-and-handling visual register on bronze-and-copper-and-leather surfaces. Sits at the hushed-and-aged end of the grid, parallel to vintage and aged in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#365b5b
Original
#57585b
Protanopia
#50535b
Deuteranopia
#265d5b
Tritanopia
#535353
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
7.49:1
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
2.80:1

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
##365B5B
Display P3
Display P3
color(display-p3 0.2450 0.3532 0.3550)
Inside sRGBOKLCH chroma 0.042

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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