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Smoky Cendra

#516564
Notes

Smoky Cendra (#516564) is a true 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 (177°, 11%, 36%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#516564
RGB
rgb(81, 101, 100)
HSL
hsl(177, 11%, 36%)
HWB
hwb(177 32% 60%)
OKLCH
oklch(49.0% 0.024 192.6)
P3
color(display-p3 0.3332 0.3938 0.3913)
HSV
hsv(177, 20%, 40%)
LAB
lab(41.18% -7.72 -1.93)
LCH
lch(41.18% 7.96 194.02)
CMYK
cmyk(20%, 0%, 1%, 60%)

Etymology

Smoky
adjective

An adjectival form of smoke, used as a color word since at least the fourteenth century. Smoky implies a slightly muted, slightly hazed quality — as if the color were seen through a layer of suspended particulate. Used across both deep and neutral buckets: a smoky black has slightly less density than pure black; a smoky gray has slightly less coolness than pure gray.

Cendra
noun

Catalan cendra, ash — the Catalan cognate, particularly the cool-pale-gray of Pyrenean-Catalan wood-ash used in Pyrenean-textile traditional cleaning-and-dye work. Cendra color refers to a freshly collected Pyrenean cendra-de-faig (beech-ash) on a hand-thrown Catalan clay collecting-jar: a balanced cool gray with the matte finish of beech-and-pine hand-collected hearth-ash with Pyrenean-mineral signature on the absorbing clay vessel-walls.

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.

#516564
Original
#626364
Protanopia
#5e6064
Deuteranopia
#4b6665
Tritanopia
#616161
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
6.18:1
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
3.40:1

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
##516564
Display P3
Display P3
color(display-p3 0.3332 0.3938 0.3913)
Inside sRGBOKLCH chroma 0.024

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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