Colors / blue
#0066CC
#0066CCoklch(0.5220 0.1771 255.8)
#0066CC (#0066CC) is a medium vivid blue, closest to the CSS color royalblue. In OKLCH it has lightness 52.2%, chroma 0.177 and hue 255.8°; its relative luminance is 13.9%. White text reads best on it (APCA Lc 82, WCAG 5.57:1). It prints well on coated paper (FOGRA39, ΔE00 3.0).
#0066CC in every format
| HEX | #0066CC |
| RGB | rgb(0 102 204) |
| HSL | hsl(210.0 100.0% 40.0%) |
| HSB / HSV | hsb(210.0 100.0% 80.0%) |
| HWB | hwb(210.0 0.0% 20.0%) |
| CMYK (formula) | cmyk(100/50/0/20) |
| CMYK (FOGRA39 coated) | cmyk(86/59/0/0) |
| CIELAB (D50) | lab(43.04 6.77 -60.89) |
| LCh | lch(43.04 61.27 276.3) |
| OKLab | oklab(0.5220 -0.0434 -0.1717) |
| OKLCH | oklch(0.5220 0.1771 255.8) |
| CIE XYZ (D65) | color(xyz-d65 0.15649 0.13861 0.58979) |
| CIE xyY | xyY(0.1768 0.1566 0.1386) |
| Display P3 | color(display-p3 0.1664 0.3936 0.7732) |
| Linear sRGB | color(srgb-linear 0.00000 0.13287 0.60383) |
| CSS name | — |
Text on #0066CC
White textWCAG 5.57:1 · APCA Lc 82
Black textWCAG 3.77:1 · APCA Lc 27
Color blindness
Tints and shades
#DBF1FF
#B5DAFF
#87C0FF
#55A5FF
#368BF4
#1772D9
#0059BE
#0040A3
#002A81
#00165D
#000040