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Fresh Forum Turquoise

#55e1d7
Notes

Fresh Forum Turquoise (#55E1D7) 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°, 70%, 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
#55e1d7
RGB
rgb(85, 225, 215)
HSL
hsl(176, 70%, 61%)
HWB
hwb(176 33% 12%)
OKLCH
oklch(83.2% 0.120 188.4)
P3
color(display-p3 0.4938 0.8709 0.8405)
HSV
hsv(176, 62%, 88%)
LAB
lab(82.21% -39.68 -6.30)
LCH
lch(82.21% 40.17 189.02)
CMYK
cmyk(62%, 0%, 4%, 12%)

Etymology

Fresh
adjective

Old English fersc, unsalted / not stale — sharing root with German frisch. As a color modifier, fresh implies a clear-and-newly-applied quality where the hue carries the just-emerged visual register. Sits at the crisp-and-clean end of the grid, parallel to crisp and new in usage.

Forum
modifier

Latin forum, open-space-of-Roman-city. As a color modifier, forum implies a Roman-and-civic-meeting-square quality, the visual register of Roman-Forum-and-Pompeii-Forum hand-built civic-meeting-square forum-and-basilica-and-rostrum Republican-and-Imperial-Roman architectural surfaces under Roman-Forum-and-Pompeii civic-meeting-square light. Sits at the modifier-and-architecture end of the grid, parallel to agora and stoa 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.

#55e1d7
Original
#d5d6d7
Protanopia
#c0c6d8
Deuteranopia
#00e6de
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
1.60:1
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
13.14:1

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
##55E1D7
Display P3
Display P3
color(display-p3 0.4938 0.8709 0.8405)
P3 has subtle headroomOKLCH chroma 0.120

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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