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Energetic Bergen

#51faf9
Notes

Energetic Bergen (#51FAF9) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (180°, 94%, 65%) 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
#51faf9
RGB
rgb(81, 250, 249)
HSL
hsl(180, 94%, 65%)
HWB
hwb(180 32% 2%)
OKLCH
oklch(90.1% 0.135 194.4)
P3
color(display-p3 0.5245 0.9672 0.9700)
HSV
hsv(180, 68%, 98%)
LAB
lab(90.30% -42.37 -12.15)
LCH
lch(90.30% 44.08 196.00)
CMYK
cmyk(68%, 0%, 0%, 2%)

Etymology

Energetic
adjective

Greek energētikós, active — derived from energeia (activity). As a color modifier, energetic implies a saturated-and-kinetic-and-active quality where the hue carries visual vibration and movement-suggestion that engages the eye dynamically. Sits at the bright-and-active end of the grid, parallel to dynamic and spirited in usage.

Bergen
noun

The Norwegian fjord-town on the Bryggen harbor — and the saturated deep blue of Bergen's Vågen harbor and the surrounding Hardangerfjord water. Bergen color refers to Bergen harbor at clear-day midday: a saturated, slightly cool deep blue with the optical depth of glacier-fed coastal 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.

#51faf9
Original
#eaeef9
Protanopia
#d1dbfa
Deuteranopia
#00fff9
Tritanopia
#d6d6d6
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
1.28:1
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
16.39:1

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
##51FAF9
Display P3
Display P3
color(display-p3 0.5245 0.9672 0.9700)
P3 has subtle headroomOKLCH chroma 0.135

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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