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Straightforward Pool

#3f908b
Notes

Straightforward Pool (#3F908B) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (176°, 39%, 41%) 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
#3f908b
RGB
rgb(63, 144, 139)
HSL
hsl(176, 39%, 41%)
HWB
hwb(176 25% 44%)
OKLCH
oklch(60.2% 0.079 189.8)
P3
color(display-p3 0.3325 0.5576 0.5431)
HSV
hsv(176, 56%, 56%)
LAB
lab(54.93% -25.81 -4.82)
LCH
lch(54.93% 26.25 190.57)
CMYK
cmyk(56%, 0%, 3%, 44%)

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.

Pool
noun

A constructed body of water — the residential or municipal swimming pool, almost universally lined with white plaster or pale tile that filters the water's color toward blue-green. The color refers to a sunlit pool at noon: a clean, slightly green-shifted light blue with the optical density of chlorinated water in a treated basin. Cooler than aqua, warmer than turquoise, with the suburban weight of mid-century leisure.

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.

#3f908b
Original
#89898b
Protanopia
#7b7f8c
Deuteranopia
#00938e
Tritanopia
#7e7e7e
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).
AA Largeon White
3.77:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.57:1

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
##3F908B
Display P3
Display P3
color(display-p3 0.3325 0.5576 0.5431)
Inside sRGBOKLCH chroma 0.079

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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