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Organized Bothnia

#28bdc0
Notes

Organized Bothnia (#28BDC0) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (181°, 66%, 45%) 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
#28bdc0
RGB
rgb(40, 189, 192)
HSL
hsl(181, 66%, 45%)
HWB
hwb(181 16% 25%)
OKLCH
oklch(72.7% 0.117 197.0)
P3
color(display-p3 0.3620 0.7305 0.7465)
HSV
hsv(181, 79%, 75%)
LAB
lab(69.93% -35.40 -12.28)
LCH
lch(69.93% 37.47 199.13)
CMYK
cmyk(79%, 2%, 0%, 25%)

Etymology

Organized
adjective

Greek órganon, instrument / tool — past-participle of organize. As a color modifier, organized implies a clear-and-coordinated-and-systematic quality where the hue carries the visual register of well-coordinated-and-classified arrangement. Sits at the crisp-and-orderly end of the grid, parallel to orderly and methodical in usage.

Bothnia
noun

The Gulf of Bothnia — the northernmost arm of the Baltic Sea between Sweden and Finland. Bothnia color refers to mid-depth Gulf of Bothnia water at midsummer: a saturated, slightly cool deep blue with the optical complexity of low-salinity high-latitude brackish 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.

#28bdc0
Original
#afb4c0
Protanopia
#9ba4c1
Deuteranopia
#00c4be
Tritanopia
#9e9e9e
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
2.30:1
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
9.13:1

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
##28BDC0
Display P3
Display P3
color(display-p3 0.3620 0.7305 0.7465)
P3 has subtle headroomOKLCH chroma 0.117

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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