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Starched Kattegat

#67fdf7
Notes

Starched Kattegat (#67FDF7) 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 (178°, 97%, 70%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#67fdf7
RGB
rgb(103, 253, 247)
HSL
hsl(178, 97%, 70%)
HWB
hwb(178 40% 1%)
OKLCH
oklch(91.2% 0.127 191.5)
HSV
hsv(178, 59%, 99%)
LAB
lab(91.61% -40.98 -9.10)
LCH
lch(91.61% 41.98 192.51)
CMYK
cmyk(59%, 0%, 2%, 1%)

Etymology

Starched
adjective

Old English stercan, to stiffen — past-participle of starch. As a color modifier, starched implies a clear-and-stiff-and-formal quality, the crisp color of Edwardian-period formal-evening-shirt-and-collar starched-and-pressed dress-attire. Sits at the crisp-and-finished end of the grid, parallel to pressed and ironed 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

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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.

#67fdf7
Original
#eff1f7
Protanopia
#d8e0f8
Deuteranopia
#00fffb
Tritanopia
#dddddd
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
1.24:1
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
16.97:1

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