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Symmetrical Fjord

#51d4b7
Notes

Symmetrical Fjord (#51D4B7) 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 (167°, 60%, 57%) 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
#51d4b7
RGB
rgb(81, 212, 183)
HSL
hsl(167, 60%, 57%)
HWB
hwb(167 32% 17%)
OKLCH
oklch(79.0% 0.122 175.6)
P3
color(display-p3 0.4668 0.8206 0.7222)
HSV
hsv(167, 62%, 83%)
LAB
lab(77.43% -42.71 3.76)
LCH
lch(77.43% 42.87 174.97)
CMYK
cmyk(62%, 0%, 14%, 17%)

Etymology

Symmetrical
adjective

Greek symmetría, due-proportion — adjectival suffix -al, derived from sym-metron (with-measure). As a color modifier, symmetrical implies a clear-and-balanced-and-mirrored quality where the hue carries the visual register of bilateral-or-radial proportional symmetry. Sits at the crisp-and-balanced end of the grid, parallel to balanced and aligned 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.

#51d4b7
Original
#cdc7b6
Protanopia
#babab9
Deuteranopia
#00d7cb
Tritanopia
#b6b6b6
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
1.83:1
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
11.45:1

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
##51D4B7
Display P3
Display P3
color(display-p3 0.4668 0.8206 0.7222)
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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