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Plainspoken Stream

#2ac9d9
Notes

Plainspoken Stream (#2AC9D9) 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 (185°, 70%, 51%) 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
#2ac9d9
RGB
rgb(42, 201, 217)
HSL
hsl(185, 70%, 51%)
HWB
hwb(185 16% 15%)
OKLCH
oklch(76.6% 0.124 205.6)
P3
color(display-p3 0.3852 0.7769 0.8403)
HSV
hsv(185, 81%, 85%)
LAB
lab(74.36% -33.31 -19.20)
LCH
lch(74.36% 38.45 209.97)
CMYK
cmyk(81%, 7%, 0%, 15%)

Etymology

Plainspoken
adjective

English compound plain + spoken — past-participle of speak. As a color modifier, plainspoken implies a clear-and-direct-and-straightforward quality where the hue carries the visual register of unembellished-honest declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Stream
noun

A narrow flowing body of fresh water — smaller than a river, larger than a creek. The color refers to a clear stream over a gravel bed in temperate woodland: a soft, slightly green-shifted blue with the optical clarity of unsilted water. Cooler than aqua, lighter than tide, with the hydrological weight of a word that appears across nearly every English landscape vocabulary.

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.

#2ac9d9
Original
#b7c1da
Protanopia
#a0b0d9
Deuteranopia
#00d2ce
Tritanopia
#a8a8a8
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
2.01:1
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
10.46:1

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
##2AC9D9
Display P3
Display P3
color(display-p3 0.3852 0.7769 0.8403)
P3 has subtle headroomOKLCH chroma 0.124

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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