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Vibrantcyan

Cool Teal Silk

#1b9fb4
Notes

Cool Teal Silk (#1B9FB4) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (188°, 74%, 41%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1b9fb4
RGB
rgb(27, 159, 180)
HSL
hsl(188, 74%, 41%)
HWB
hwb(188 11% 29%)
OKLCH
oklch(64.7% 0.108 211.9)
HSV
hsv(188, 85%, 71%)
LAB
lab(60.18% -25.68 -20.37)
LCH
lch(60.18% 32.78 218.43)
CMYK
cmyk(85%, 12%, 0%, 29%)

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.

#1b9fb4
Original
#8f99b5
Protanopia
#7b8bb4
Deuteranopia
#00a8a5
Tritanopia
#848484
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).
AA Largeon White
3.15:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.66:1

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Canvas