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Pleasant Aqua

#1e8bbc
Notes

Pleasant Aqua (#1E8BBC) 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 (199°, 72%, 43%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1e8bbc
RGB
rgb(30, 139, 188)
HSL
hsl(199, 72%, 43%)
HWB
hwb(199 12% 26%)
OKLCH
oklch(60.2% 0.118 234.2)
P3
color(display-p3 0.2637 0.5371 0.7199)
HSV
hsv(199, 84%, 74%)
LAB
lab(54.42% -11.98 -33.80)
LCH
lch(54.42% 35.86 250.48)
CMYK
cmyk(84%, 26%, 0%, 26%)

Etymology

Pleasant
adjective

From the French plaisant, pleasing — used as a color modifier since the fifteenth century for hues that read as agreeable, the kind of color that wears well over a long viewing without becoming demanding or fatiguing. Pleasant green, pleasant rose: moderate saturation combined with optical comfort. Sits at the crisp-bucket alongside easy and calm.

Aqua
noun

Latin for water, borrowed into English as a color name in the early twentieth century — initially for the pale blue-green of swimming pools and tropical seas. The color refers to a clear-bottomed swimming pool in midday sun: a clean, slightly green-shifted light blue with the optical clarity of filtered water. Cooler than seafoam, lighter than turquoise, with the mid-century weight of a word that paints itself across postwar interior decor.

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.

#1e8bbc
Original
#738abe
Protanopia
#5e7cbb
Deuteranopia
#00989c
Tritanopia
#777777
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).
AA Largeon White
3.84:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.47:1

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
##1E8BBC
Display P3
Display P3
color(display-p3 0.2637 0.5371 0.7199)
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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