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Fresh Kattegat

#66b7ce
Notes

Fresh Kattegat (#66B7CE) is a true cyan with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (193°, 51%, 60%) places it in the balanced 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
#66b7ce
RGB
rgb(102, 183, 206)
HSL
hsl(193, 51%, 60%)
HWB
hwb(193 40% 19%)
OKLCH
oklch(73.6% 0.086 218.4)
P3
color(display-p3 0.4770 0.7099 0.7969)
HSV
hsv(193, 50%, 81%)
LAB
lab(70.28% -18.52 -19.26)
LCH
lch(70.28% 26.72 226.12)
CMYK
cmyk(50%, 11%, 0%, 19%)

Etymology

Fresh
adjective

Old English fersc, unsalted / not stale — sharing root with German frisch. As a color modifier, fresh implies a clear-and-newly-applied quality where the hue carries the just-emerged visual register. Sits at the crisp-and-clean end of the grid, parallel to crisp and new in usage.

Kattegat
noun

The body of saltwater between the Jutland peninsula and southwestern Sweden — separating the Baltic from the North Sea via the Skagerrak. Kattegat refers to mid-depth Kattegat water near Hesselø: a saturated, slightly cool deep blue with the optical depth of brackish Scandinavian water.

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.

#66b7ce
Original
#a8b3cf
Protanopia
#98a7ce
Deuteranopia
#27bfbe
Tritanopia
#a7a7a7
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).
Failon White
2.28:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
9.23:1

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
##66B7CE
Display P3
Display P3
color(display-p3 0.4770 0.7099 0.7969)
P3 has subtle headroomOKLCH chroma 0.086

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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