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Stamped Sway Turquoise

#57dfd2
Notes

Stamped Sway Turquoise (#57DFD2) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (174°, 68%, 61%) 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
#57dfd2
RGB
rgb(87, 223, 210)
HSL
hsl(174, 68%, 61%)
HWB
hwb(174 34% 13%)
OKLCH
oklch(82.6% 0.119 186.3)
HSV
hsv(174, 61%, 87%)
LAB
lab(81.54% -39.75 -4.63)
LCH
lch(81.54% 40.02 186.64)
CMYK
cmyk(61%, 0%, 6%, 13%)

Etymology

Stamped
adjective

Old English stempan, to stamp — past-participle of stamp. As a color modifier, stamped implies a clear-and-impressed-and-repeating quality, the crisp color of William-Morris-and-Liberty-of-London block-printed-textile carefully-impressed pattern. Sits at the crisp-and-printed end of the grid, parallel to printed and engraved in usage.

Sway
modifier

Middle English swēven, to-move-side-to-side. As a color modifier, sway implies a side-to-side-and-rocking-and-rhythmic quality, the visual register of willow-branch-and-tall-grass-sway hand-side-to-side-and-rocking-and-rhythmic willow-branch-and-tall-grass-and-pendulum-clock swayed-and-side-to-side-and-rocking-and-rhythmic surfaces under willow-branch-and-tall-grass-and-pendulum-clock breeze-rocked-and-pendulum-and-cradle riverbank-meadow-light. Sits at the modifier-and-mood end of the grid, parallel to drift and float 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

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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.

#57dfd2
Original
#d4d4d2
Protanopia
#bfc4d4
Deuteranopia
#00e4db
Tritanopia
#c1c1c1
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
1.63:1
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
12.89:1

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