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Practical Fjord

#57ad8d
Notes

Practical Fjord (#57AD8D) 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 (158°, 34%, 51%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#57ad8d
RGB
rgb(87, 173, 141)
HSL
hsl(158, 34%, 51%)
HWB
hwb(158 34% 32%)
OKLCH
oklch(68.5% 0.097 167.0)
P3
color(display-p3 0.4270 0.6705 0.5605)
HSV
hsv(158, 50%, 68%)
LAB
lab(64.83% -33.79 8.54)
LCH
lch(64.83% 34.85 165.82)
CMYK
cmyk(50%, 0%, 18%, 32%)

Etymology

Practical
adjective

Greek praktikós, practical — adjectival suffix -al. As a color modifier, practical implies a clear-and-purpose-fit-and-everyday quality where the hue carries the visual register of Shaker-and-Quaker utilitarian-and-functional everyday-life craft. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Fjord
noun

The deep glacier-carved coastal inlets of Norway, Iceland, New Zealand, and Patagonia — formed during the Pleistocene as ice sheets retreated and seawater flooded the glacial valleys. Fjord color refers to mid-depth Norwegian fjord water at Geirangerfjord: a deep, slightly cool deep blue-green with the optical complexity of glacier-melt water mixed with cold seawater.

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.

#57ad8d
Original
#aaa38b
Protanopia
#9c998f
Deuteranopia
#38aea4
Tritanopia
#989898
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
2.70:1
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
7.77:1

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
##57AD8D
Display P3
Display P3
color(display-p3 0.4270 0.6705 0.5605)
P3 has subtle headroomOKLCH chroma 0.097

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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