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Unblemished Brood Turquoise

#4be5da
Notes

Unblemished Brood Turquoise (#4BE5DA) 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 (176°, 75%, 60%) 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
#4be5da
RGB
rgb(75, 229, 218)
HSL
hsl(176, 75%, 60%)
HWB
hwb(176 29% 10%)
OKLCH
oklch(84.0% 0.128 188.1)
P3
color(display-p3 0.4811 0.8859 0.8523)
HSV
hsv(176, 67%, 90%)
LAB
lab(83.23% -42.18 -6.41)
LCH
lch(83.23% 42.66 188.64)
CMYK
cmyk(67%, 0%, 5%, 10%)

Etymology

Unblemished
adjective

Old French blesmir, to wound — negative-prefix un- plus past-participle of blemish. As a color modifier, unblemished implies a clear-and-flawless quality where the hue carries no defect or imperfection. Sits at the crisp-and-clean end of the grid, parallel to pristine and spotless in usage.

Brood
modifier

Old English brōd, young-of-birds-or-to-ponder. As a color modifier, brood implies a hen-and-pondering-and-darkly-thinking quality, the visual register of Heathcliff-and-Hamlet-brood hand-hen-and-pondering-and-darkly-thinking Heathcliff-and-Hamlet-and-Byronic-hero brooded-and-pondering-and-darkly-thinking surfaces under Heathcliff-and-Hamlet-and-Byronic-hero stormy-and-overcast-and-introspective Yorkshire-moor-light. Sits at the modifier-and-mood end of the grid, parallel to mope and sigh 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.

#4be5da
Original
#d9d9da
Protanopia
#c2c8dc
Deuteranopia
#00ebe1
Tritanopia
#c3c3c3
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
1.55:1
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
13.52:1

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
##4BE5DA
Display P3
Display P3
color(display-p3 0.4811 0.8859 0.8523)
P3 has subtle headroomOKLCH chroma 0.128

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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