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Straightforward Sininen

#81f2ef
Notes

Straightforward Sininen (#81F2EF) is a soft cyan 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 (178°, 81%, 73%) places it in the highly saturated band at a light 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
#81f2ef
RGB
rgb(129, 242, 239)
HSL
hsl(178, 81%, 73%)
HWB
hwb(178 51% 5%)
OKLCH
oklch(89.4% 0.104 193.2)
P3
color(display-p3 0.6165 0.9385 0.9328)
HSV
hsv(178, 47%, 95%)
LAB
lab(89.11% -32.95 -8.56)
LCH
lch(89.11% 34.05 194.56)
CMYK
cmyk(47%, 0%, 1%, 5%)

Etymology

Straightforward
adjective

English compound straight + forward — sharing root with German geradeaus. As a color modifier, straightforward implies a clear-and-direct-and-unencumbered quality where the hue carries the visual register of clear-aim-and-uncomplicated character. Sits at the crisp-and-honest end of the grid, parallel to candid and direct 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.

#81f2ef
Original
#e6e8ef
Protanopia
#d3daf0
Deuteranopia
#41f8f1
Tritanopia
#dadada
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
1.32:1
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
15.88:1

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
##81F2EF
Display P3
Display P3
color(display-p3 0.6165 0.9385 0.9328)
P3 has subtle headroomOKLCH chroma 0.104

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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