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Strobing Salve Turquoise

#28d5cd
Notes

Strobing Salve Turquoise (#28D5CD) 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°, 68%, 50%) 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
#28d5cd
RGB
rgb(40, 213, 205)
HSL
hsl(177, 68%, 50%)
HWB
hwb(177 16% 16%)
OKLCH
oklch(79.1% 0.130 189.9)
P3
color(display-p3 0.4039 0.8233 0.8003)
HSV
hsv(177, 81%, 84%)
LAB
lab(77.54% -42.51 -7.97)
LCH
lch(77.54% 43.25 190.61)
CMYK
cmyk(81%, 0%, 4%, 16%)

Etymology

Strobing
adjective

Greek stróbos, whirling — present-participle of strobe. As a color modifier, strobing implies a saturated-and-pulse-flashing quality, the bright color of concert-strobe-light and photographic-strobe high-frequency-pulse light emission. Sits at the bright-and-flashing end of the grid, parallel to flashing and pulsating in usage.

Salve
modifier

Latin salve, hail-or-be-well. As a color modifier, salve implies a Latin-greeting-and-Salve-Regina-and-Roman-salute quality, the visual register of Salve-Regina-and-Pompeii-salve hand-Latin-greeting-and-Salve-Regina-and-Roman-salute Salve-Regina-and-Pompeii-salve-and-Roman-doormat-mosaic salve-and-Latin-greeting surfaces under Salve-Regina-and-Pompeii-salve-and-Roman-doormat-mosaic Pompeian-mosaic-and-Marian-antiphon Roman-greeting-light. Sits at the modifier-and-Latin end of the grid, parallel to ave and pax 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.

#28d5cd
Original
#c8c9cd
Protanopia
#b1b9ce
Deuteranopia
#00dbd2
Tritanopia
#b0b0b0
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
1.83:1
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
11.49:1

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
##28D5CD
Display P3
Display P3
color(display-p3 0.4039 0.8233 0.8003)
P3 has subtle headroomOKLCH chroma 0.130

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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