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Jazzed Merlon Turquoise

#1cddd2
Notes

Jazzed Merlon Turquoise (#1CDDD2) 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 (177°, 78%, 49%) 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
#1cddd2
RGB
rgb(28, 221, 210)
HSL
hsl(177, 78%, 49%)
HWB
hwb(177 11% 13%)
OKLCH
oklch(81.1% 0.138 188.3)
P3
color(display-p3 0.4071 0.8540 0.8206)
HSV
hsv(177, 87%, 87%)
LAB
lab(79.96% -45.39 -7.07)
LCH
lch(79.96% 45.94 188.86)
CMYK
cmyk(87%, 0%, 5%, 13%)

Etymology

Jazzed
adjective

American slang jazz, liveliness — past-participle of jazz. As a color modifier, jazzed implies a saturated-and-excited-and-active quality, the bright color of American-Jazz-Age poster-and-album-cover saturated-and-rhythmic graphic-design. Sits at the bright-and-active end of the grid, parallel to caffeinated and wired in usage.

Merlon
modifier

Italian merlone, battlement-tooth. As a color modifier, merlon implies a castle-battlement-tooth-between-crenels quality, the visual register of medieval-castle-battlement hand-cut merlon-and-crenel-castle-battlement tooth-and-notch-pattern fortification-architecture surfaces under medieval-castle-battlement defensive light. Sits at the modifier-and-architecture end of the grid, parallel to crenel and keep in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#1cddd2
Original
#d0d0d2
Protanopia
#b8bfd4
Deuteranopia
#00e3d9
Tritanopia
#b3b3b3
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
1.70:1
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
12.32:1

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
##1CDDD2
Display P3
Display P3
color(display-p3 0.4071 0.8540 0.8206)
P3 has subtle headroomOKLCH chroma 0.138

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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