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Subdued Mariner

#406666
Notes

Subdued Mariner (#406666) 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°, 23%, 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
#406666
RGB
rgb(64, 102, 102)
HSL
hsl(180, 23%, 33%)
HWB
hwb(180 25% 60%)
OKLCH
oklch(48.2% 0.043 195.8)
P3
color(display-p3 0.2844 0.3961 0.3980)
HSV
hsv(180, 37%, 40%)
LAB
lab(40.49% -13.41 -4.28)
LCH
lch(40.49% 14.08 197.70)
CMYK
cmyk(37%, 0%, 0%, 60%)

Etymology

Subdued
adjective

The past participle of subdue, to bring under control — used as a color modifier since the seventeenth century for hues that have been reduced from their natural saturation. Subdued red, subdued green: low-to-moderate saturation combined with optical restraint. Sits at the hushed-bucket alongside muted and tempered.

Mariner
noun

One who sails the sea — from the Latin mare. As a color name, mariner refers to the deep navy-and-cyan of traditional naval and merchant-marine uniforms: a saturated, slightly muted blue with the matte finish of dyed wool. Cooler than navy, warmer than ocean, with the maritime-uniform association of a word that always implies a working boat rather than a recreational one.

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.

#406666
Original
#616366
Protanopia
#5a5d66
Deuteranopia
#316866
Tritanopia
#5e5e5e
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
6.34:1
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
3.31:1

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
##406666
Display P3
Display P3
color(display-p3 0.2844 0.3961 0.3980)
Inside sRGBOKLCH chroma 0.043

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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