#128B9B Color

#128B9B is rgb(18, 139, 155) in RGB and hsl(187, 79%, 34%) in HSL. The closest CSS named color is DarkCyan. Black text is most readable on this background.

#128B9B

HEX#128B9B

RGBrgb(18, 139, 155)

HSLhsl(187, 79%, 34%)

HSVhsv(187, 88%, 61%)

OKLCHoklch(58.4% 0.098 209.5)

CMYKcmyk(88%, 10%, 0%, 39%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #128B9B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.04:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.19:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #128B9B based on color wheel relationships. Click any swatch for its full breakdown.

Base#128B9B Complementary#9B2212 Analogous#129B67 Analogous#12479B Triadic#9B128B Triadic#8B9B12

Tints & Shades

Lighter tints and darker shades of #128B9B, useful for hover states, backgrounds, and text variants.

Tints

#17B0C4 #24CFE5 #4DD8EA #7BE2EF #A4EBF4 #CDF4F9

Shades

#107B89 #0D6672 #0B5660 #09464E #07353B #042125

Use #128B9B in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex