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Printed Sparta Turquoise

#21c0d1
Notes

Printed Sparta Turquoise (#21C0D1) 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 (186°, 73%, 47%) 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
#21c0d1
RGB
rgb(33, 192, 209)
HSL
hsl(186, 73%, 47%)
HWB
hwb(186 13% 18%)
OKLCH
oklch(74.0% 0.122 206.5)
P3
color(display-p3 0.3593 0.7420 0.8089)
HSV
hsv(186, 84%, 82%)
LAB
lab(71.30% -32.18 -19.52)
LCH
lch(71.30% 37.64 211.23)
CMYK
cmyk(84%, 8%, 0%, 18%)

Etymology

Printed
adjective

Latin premere, to press — past-participle of print. As a color modifier, printed implies a clear-and-impressed-and-multiplied quality, the crisp color of Marimekko-and-Liberty-of-London hand-or-machine-printed textile-and-paper pattern-design. Sits at the crisp-and-printed end of the grid, parallel to stamped and etched in usage.

Sparta
modifier

Greek Σπάρτη, Sparta. As a color modifier, sparta implies a Lacedaemonian-and-warrior-city-state quality, the visual register of Spartan-Lacedaemonian-City-State hand-built bronze-armor-and-crimson-tunic-and-stone-temple Doric-warrior-state surfaces under Lacedaemonian-Sparta-and-Eurotas-Valley Doric-warrior-state Greek-Peloponnese light. Sits at the modifier-and-cultural end of the grid, parallel to athens and roman 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.

#21c0d1
Original
#afb8d2
Protanopia
#98a7d1
Deuteranopia
#00c9c5
Tritanopia
#9f9f9f
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
2.20:1
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
9.53:1

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
##21C0D1
Display P3
Display P3
color(display-p3 0.3593 0.7420 0.8089)
P3 has subtle headroomOKLCH chroma 0.122

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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