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Pleasant Heron

#256881
Notes

Pleasant Heron (#256881) is a deep 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 (196°, 55%, 33%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#256881
RGB
rgb(37, 104, 129)
HSL
hsl(196, 55%, 33%)
HWB
hwb(196 15% 49%)
OKLCH
oklch(48.6% 0.077 226.6)
P3
color(display-p3 0.2203 0.4022 0.4959)
HSV
hsv(196, 71%, 51%)
LAB
lab(41.02% -12.33 -20.01)
LCH
lch(41.02% 23.51 238.36)
CMYK
cmyk(71%, 19%, 0%, 49%)

Etymology

Pleasant
adjective

From the French plaisant, pleasing — used as a color modifier since the fifteenth century for hues that read as agreeable, the kind of color that wears well over a long viewing without becoming demanding or fatiguing. Pleasant green, pleasant rose: moderate saturation combined with optical comfort. Sits at the crisp-bucket alongside easy and calm.

Heron
noun

The family Ardeidae — particularly Ardea cinerea (gray heron) of European wetlands and Ardea herodias (great blue heron) of North America, whose plumage is dominated by saturated blue-gray. The color refers to a great blue heron in flight: a soft, slightly cool deep blue-gray with the matte finish of large wading-bird plumage.

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.

#256881
Original
#5b6682
Protanopia
#4e5d81
Deuteranopia
#006f70
Tritanopia
#5c5c5c
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).
AAon White
6.22:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.38:1

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
##256881
Display P3
Display P3
color(display-p3 0.2203 0.4022 0.4959)
Inside sRGBOKLCH chroma 0.077

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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