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Sterile Cotton

#f1b8e0
Notes

Sterile Cotton (#F1B8E0) is a soft magenta with a pastel character. It reads calm and airy, with enough chroma to feel intentional rather than washed out. Its HSL profile (318°, 67%, 83%) places it in the balanced 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#f1b8e0
RGB
rgb(241, 184, 224)
HSL
hsl(318, 67%, 83%)
HWB
hwb(318 72% 5%)
OKLCH
oklch(84.6% 0.083 337.5)
HSV
hsv(318, 24%, 95%)
LAB
lab(80.94% 26.85 -12.00)
LCH
lch(80.94% 29.41 335.91)
CMYK
cmyk(0%, 24%, 7%, 5%)

Etymology

Sterile
adjective

Latin sterilis, barren / not-fertile — sharing root with Greek steiros (barren). As a color modifier, sterile implies a clear-and-medical-clean-and-stripped quality, the crisp color of operating-theater surgical-environment white-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and hygienic in usage.

Cotton
noun

The genus Gossypium — domesticated independently in the Old and New Worlds for the fluffy fiber that surrounds its seeds. The color refers to a fresh cotton boll at harvest: a clean, very pale slightly warm off-white with the slightly textured matte finish of fluffy plant fiber. Warmer than snow, cooler than cream.

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

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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.

#f1b8e0
Original
#b9c4e2
Protanopia
#c6ccde
Deuteranopia
#f7b9c6
Tritanopia
#c7c7c7
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
1.66:1
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
12.67:1

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