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Fresh Oolong

#12a4a5
Notes

Fresh Oolong (#12A4A5) is a true cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (180°, 80%, 36%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#12a4a5
RGB
rgb(18, 164, 165)
HSL
hsl(180, 80%, 36%)
HWB
hwb(180 7% 35%)
OKLCH
oklch(65.2% 0.109 195.6)
P3
color(display-p3 0.2952 0.6335 0.6418)
HSV
hsv(180, 89%, 65%)
LAB
lab(61.13% -33.51 -10.49)
LCH
lch(61.13% 35.11 197.39)
CMYK
cmyk(89%, 1%, 0%, 35%)

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.

Oolong
noun

The partially-oxidized Chinese tea — qīng-chá (cyan tea) — with the deep blue-green liquor distinct from green tea (lower oxidation) and black tea (higher oxidation). The color refers to fresh-brewed Tieguanyin oolong: a saturated, slightly cool deep blue-green with the optical depth of partially-fermented tea liquor.

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.

#12a4a5
Original
#989ba5
Protanopia
#858ea6
Deuteranopia
#00aaa4
Tritanopia
#858585
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).
AA Largeon White
3.05:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.88:1

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
##12A4A5
Display P3
Display P3
color(display-p3 0.2952 0.6335 0.6418)
P3 has subtle headroomOKLCH chroma 0.109

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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