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Pristine Morningglory

#4ddde4
Notes

Pristine Morningglory (#4DDDE4) 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 (183°, 74%, 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
#4ddde4
RGB
rgb(77, 221, 228)
HSL
hsl(183, 74%, 60%)
HWB
hwb(183 30% 11%)
OKLCH
oklch(82.5% 0.120 199.8)
P3
color(display-p3 0.4724 0.8551 0.8860)
HSV
hsv(183, 66%, 89%)
LAB
lab(81.23% -35.51 -14.69)
LCH
lch(81.23% 38.43 202.47)
CMYK
cmyk(66%, 3%, 0%, 11%)

Etymology

Pristine
adjective

Latin prīstinus, original / former. As a color modifier, pristine implies a clear-and-untouched quality where the hue carries the original-condition visual register without wear or fade. Sits at the crisp-and-clean end of the grid, parallel to unblemished and spotless in usage.

Morningglory
noun

The family Convolvulaceae — particularly Ipomoea purpurea, the climbing annual whose blue-purple morning-blooming trumpet flowers close by midday. The color refers to a fresh Ipomoea flower in early morning: a saturated, slightly cool deep blue-violet with the satin finish of single-day trumpet bloom.

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.

#4ddde4
Original
#cdd3e5
Protanopia
#b7c3e5
Deuteranopia
#00e5df
Tritanopia
#bfbfbf
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
1.64:1
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
12.78:1

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
##4DDDE4
Display P3
Display P3
color(display-p3 0.4724 0.8551 0.8860)
P3 has subtle headroomOKLCH chroma 0.120

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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