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Open Fiji

#4dc9a5
Notes

Open Fiji (#4DC9A5) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (163°, 53%, 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
#4dc9a5
RGB
rgb(77, 201, 165)
HSL
hsl(163, 53%, 55%)
HWB
hwb(163 30% 21%)
OKLCH
oklch(75.7% 0.122 170.5)
P3
color(display-p3 0.4426 0.7780 0.6547)
HSV
hsv(163, 62%, 79%)
LAB
lab(73.59% -42.96 7.88)
LCH
lch(73.59% 43.68 169.60)
CMYK
cmyk(62%, 0%, 18%, 21%)

Etymology

Open
adjective

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Fiji
noun

The Melanesian archipelago — and the saturated turquoise of Fijian lagoons surrounding the Yasawa and Mamanuca island groups. Fiji refers to a Fijian lagoon at high tide: a saturated, slightly cool deep blue-green with the optical clarity of warm South Pacific water.

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.

#4dc9a5
Original
#c4bca3
Protanopia
#b2b0a7
Deuteranopia
#00cabf
Tritanopia
#acacac
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
2.06:1
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
10.21:1

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
##4DC9A5
Display P3
Display P3
color(display-p3 0.4426 0.7780 0.6547)
P3 has subtle headroomOKLCH chroma 0.122

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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