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Disciplined Tide

#2aadd1
Notes

Disciplined Tide (#2AADD1) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (193°, 67%, 49%) 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
#2aadd1
RGB
rgb(42, 173, 209)
HSL
hsl(193, 67%, 49%)
HWB
hwb(193 16% 18%)
OKLCH
oklch(69.6% 0.118 221.5)
P3
color(display-p3 0.3376 0.6688 0.8043)
HSV
hsv(193, 80%, 82%)
LAB
lab(65.73% -21.99 -28.01)
LCH
lch(65.73% 35.61 231.87)
CMYK
cmyk(80%, 17%, 0%, 18%)

Etymology

Disciplined
adjective

Latin disciplīna, teaching / training — past-participle of discipline. As a color modifier, disciplined implies a clear-and-controlled-and-careful quality where the hue carries the visual register of careful-edited-and-restrained design-decision. Sits at the crisp-and-orderly end of the grid, parallel to methodical and orderly in usage.

Tide
noun

The slow flow of seawater driven by lunar gravity — the daily cycle of high to low and back. Tidal and tide used as a color refer to the deep blue-green of coastal water at mid-tide on an overcast day: a soft, slightly muted blue-green with the optical complexity of water in motion. Cooler than reef, deeper than seafoam, with the ecological weight of a force that has shaped every coastline on Earth.

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.

#2aadd1
Original
#98a9d3
Protanopia
#8299d1
Deuteranopia
#00b8b9
Tritanopia
#949494
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
2.63:1
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
8.00:1

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
##2AADD1
Display P3
Display P3
color(display-p3 0.3376 0.6688 0.8043)
P3 has subtle headroomOKLCH chroma 0.118

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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