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Quiet Sapphire Weave

#2178bb
Notes

Quiet Sapphire Weave (#2178BB) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (206°, 70%, 43%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2178bb
RGB
rgb(33, 120, 187)
HSL
hsl(206, 70%, 43%)
HWB
hwb(206 13% 27%)
OKLCH
oklch(55.6% 0.131 247.0)
HSV
hsv(206, 82%, 73%)
LAB
lab(48.69% -0.98 -42.24)
LCH
lch(48.69% 42.26 268.67)
CMYK
cmyk(82%, 36%, 0%, 27%)

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.

#2178bb
Original
#587bbe
Protanopia
#426dba
Deuteranopia
#008890
Tritanopia
#6a6a6a
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
4.70:1
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
4.47:1

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