#21666E Color
#21666E is rgb(33, 102, 110) in RGB and hsl(186, 54%, 28%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.
#21666E
HEX
#21666ERGB
rgb(33, 102, 110)HSL
hsl(186, 54%, 28%)HSV
hsv(186, 70%, 43%)OKLCH
oklch(47.1% 0.068 206.1)CMYK
cmyk(70%, 7%, 0%, 57%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #21666E background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text6.58:1AA normal ✓AA large ✓AAA normal ✗
TextBlack text3.19:1AA normal ✗AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #21666E based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #21666E, useful for hover states, backgrounds, and text variants.