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Incandescent Limed Turquoise

#39e0d2
Notes

Incandescent Limed Turquoise (#39E0D2) 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 (175°, 73%, 55%) 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
#39e0d2
RGB
rgb(57, 224, 210)
HSL
hsl(175, 73%, 55%)
HWB
hwb(175 22% 12%)
OKLCH
oklch(82.2% 0.133 186.4)
P3
color(display-p3 0.4442 0.8661 0.8218)
HSV
hsv(175, 75%, 88%)
LAB
lab(81.20% -44.35 -5.20)
LCH
lch(81.20% 44.66 186.69)
CMYK
cmyk(75%, 0%, 6%, 12%)

Etymology

Incandescent
adjective

Latin incandēscēns, growing-hot — present-participle of incandēscere, sharing root with candere (to shine). As a color modifier, incandescent implies a saturated-and-glowing-hot quality, the bright color of tungsten-filament-glow incandescent-lamp light. Sits at the bright-and-warm end of the grid, parallel to glowing and blazing in usage.

Limed
modifier

Old English līm, lime. As a color modifier, limed implies a lime-washed-and-whitened quality, the visual register of Andalusian-and-Mediterranean-limewashed hand-limed-and-whitewashed stone-and-stucco-and-timber Andalusian-and-Mediterranean-limewashed surfaces under Andalusian-and-Mediterranean lime-washed-and-whitened light. Sits at the modifier-and-texture end of the grid, parallel to mossed and pitted 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.

#39e0d2
Original
#d4d3d2
Protanopia
#bdc3d4
Deuteranopia
#00e5db
Tritanopia
#bbbbbb
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
12.77:1

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
##39E0D2
Display P3
Display P3
color(display-p3 0.4442 0.8661 0.8218)
P3 has subtle headroomOKLCH chroma 0.133

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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