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Sterile Antibes

#305ca4
Notes

Sterile Antibes (#305CA4) is a true azure 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 (217°, 55%, 42%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#305ca4
RGB
rgb(48, 92, 164)
HSL
hsl(217, 55%, 42%)
HWB
hwb(217 19% 36%)
OKLCH
oklch(48.2% 0.126 259.8)
HSV
hsv(217, 71%, 64%)
LAB
lab(39.52% 9.75 -43.36)
LCH
lch(39.52% 44.44 282.67)
CMYK
cmyk(71%, 44%, 0%, 36%)

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.

Antibes
noun

The French Riviera town between Cannes and Nice — and the saturated deep blue of the Côte d'Azur between Cap d'Antibes and the harbor. Antibes color refers to Cap d'Antibes sea water at midday: a saturated, slightly cool deep blue with the optical clarity of warm Mediterranean coast.

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.

#305ca4
Original
#3963a7
Protanopia
#2558a3
Deuteranopia
#006d78
Tritanopia
#585858
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
6.58:1
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
3.19:1

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