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Hygienic Bluestem

#a3f7b9
Notes

Hygienic Bluestem (#A3F7B9) is a soft green with a pastel character. It reads calm and airy, with enough chroma to feel intentional rather than washed out. Its HSL profile (136°, 84%, 80%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a3f7b9
RGB
rgb(163, 247, 185)
HSL
hsl(136, 84%, 80%)
HWB
hwb(136 64% 3%)
OKLCH
oklch(90.6% 0.118 151.8)
P3
color(display-p3 0.7127 0.9600 0.7454)
HSV
hsv(136, 34%, 97%)
LAB
lab(90.69% -37.94 21.92)
LCH
lch(90.69% 43.82 149.98)
CMYK
cmyk(34%, 0%, 25%, 3%)

Etymology

Hygienic
adjective

Greek hygieinós, healthful — derived from Hygieia (goddess of health). As a color modifier, hygienic implies a clear-and-medical-clean quality, the crisp color of Mid-Century-Modern clinical-and-hospital interior-architecture surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and sterile in usage.

Bluestem
noun

The genera Andropogon and Schizachyrium — North American native prairie grasses whose stems shift from green to blue-purple in autumn. The color refers to S. scoparium (little bluestem) in midsummer: a soft, slightly cool blue-green-gray with the matte finish of upright prairie grass.

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.

#a3f7b9
Original
#f8eab5
Protanopia
#eae1bc
Deuteranopia
#95f4e6
Tritanopia
#e1e1e1
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
1.27:1
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
16.56:1

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
##A3F7B9
Display P3
Display P3
color(display-p3 0.7127 0.9600 0.7454)
P3 has subtle headroomOKLCH chroma 0.118

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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