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Methodical Sininen

#28b8bd
Notes

Methodical Sininen (#28B8BD) 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 (182°, 65%, 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
#28b8bd
RGB
rgb(40, 184, 189)
HSL
hsl(182, 65%, 45%)
HWB
hwb(182 16% 26%)
OKLCH
oklch(71.4% 0.114 198.6)
P3
color(display-p3 0.3535 0.7112 0.7343)
HSV
hsv(182, 79%, 74%)
LAB
lab(68.32% -33.95 -13.05)
LCH
lch(68.32% 36.37 201.02)
CMYK
cmyk(79%, 3%, 0%, 26%)

Etymology

Methodical
adjective

Greek méthodos, systematic-procedure — adjectival suffix -al. As a color modifier, methodical implies a clear-and-systematic-and-step-by-step quality where the hue carries the visual register of careful-procedure-followed design-element. Sits at the crisp-and-orderly end of the grid, parallel to orderly and organized in usage.

Sininen
noun

The Finnish word for blue — used for the Suomenlippu (Finnish flag) and the saturated blue of Finnish lake water. Sininen covers the entire blue-cyan spectrum in Finnish color vocabulary. The color refers to a Finnish lake at midsummer: a saturated, slightly cool deep blue with the optical depth of clear glacial-lake 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.

#28b8bd
Original
#aaafbe
Protanopia
#96a0be
Deuteranopia
#00bfb9
Tritanopia
#9a9a9a
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
2.42:1
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
8.68:1

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
##28B8BD
Display P3
Display P3
color(display-p3 0.3535 0.7112 0.7343)
P3 has subtle headroomOKLCH chroma 0.114

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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