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Gentle Loch

#4b6f80
Notes

Gentle Loch (#4B6F80) 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 (199°, 26%, 40%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4b6f80
RGB
rgb(75, 111, 128)
HSL
hsl(199, 26%, 40%)
HWB
hwb(199 29% 50%)
OKLCH
oklch(52.1% 0.049 229.1)
P3
color(display-p3 0.3247 0.4315 0.4948)
HSV
hsv(199, 41%, 50%)
LAB
lab(44.83% -8.07 -13.43)
LCH
lch(44.83% 15.67 239.01)
CMYK
cmyk(41%, 13%, 0%, 50%)

Etymology

Gentle
adjective

Latin gentilis, of the same family, kind — drifted to mean mild. Used as a color modifier since the medieval period for hues that read as soft and unimposing. Gentle gray, gentle blue: low saturation combined with optical mildness. Sits at the hushed-bucket alongside soft and tender.

Loch
noun

The Scottish word for lake (from Gaelic loch) — particularly the saturated deep blue of Loch Ness, Loch Lomond, and the highland lochs of the western Highlands. Loch color refers to Loch Lomond at midday: a saturated, slightly cool deep blue with the optical depth of cold-water highland lake.

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.

#4b6f80
Original
#666e81
Protanopia
#5f6780
Deuteranopia
#377474
Tritanopia
#696969
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
5.41:1
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
3.88:1

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
##4B6F80
Display P3
Display P3
color(display-p3 0.3247 0.4315 0.4948)
Inside sRGBOKLCH chroma 0.049

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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