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Atmospheric Naiad

#b5d2b8
Notes

Atmospheric Naiad (#B5D2B8) is a soft green 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 (126°, 24%, 77%) places it in the muted band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. For a confident two-color system, pair it with its complementary violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b5d2b8
RGB
rgb(181, 210, 184)
HSL
hsl(126, 24%, 77%)
HWB
hwb(126 71% 18%)
OKLCH
oklch(83.5% 0.047 148.0)
P3
color(display-p3 0.7317 0.8201 0.7294)
HSV
hsv(126, 14%, 82%)
LAB
lab(81.50% -14.61 9.67)
LCH
lch(81.50% 17.52 146.50)
CMYK
cmyk(14%, 0%, 12%, 18%)

Etymology

Atmospheric
adjective

Greek atmós (vapor) plus spaira (sphere) — adjectival suffix -ic. As a color modifier, atmospheric implies a pale-and-air-and-mood-and-environmental quality, the pale color of Romantic-period-and-Tonalist landscape-painting atmospheric-and-mood-evoking soft-light surface. Sits at the pale-and-soft end of the grid, parallel to vaporous and misty in usage.

Naiad
noun

The water-nymphs of Greek mythology — daughters of river-gods who personified the springs, brooks, and lakes of the ancient Mediterranean. Naiad color refers to a Greek mountain spring at midday: a soft, slightly cool deep blue-green with the optical clarity of mineral-spring water emerging into a marble basin.

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.

#b5d2b8
Original
#d3cdb7
Protanopia
#cec9b9
Deuteranopia
#b2d1ca
Tritanopia
#cacaca
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
1.63:1
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
12.88:1

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
##B5D2B8
Display P3
Display P3
color(display-p3 0.7317 0.8201 0.7294)
Inside sRGBOKLCH chroma 0.047

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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