Colors / blue
Ultramarine Blue #1805DB
#1805DBoklch(0.4101 0.2741 266.8)
Ultramarine Blue (#1805DB) is a dark very vivid blue. In OKLCH it has lightness 41.0%, chroma 0.274 and hue 266.8°; its relative luminance is 5.4%. White text reads best on it (APCA Lc 95, WCAG 10.08:1). It is outside the FOGRA39 coated print gamut: the closest printable color is #384A97 (ΔE00 12.3).
#1805DB in every format
| HEX | #1805DB |
| RGB | rgb(24 5 219) |
| HSL | hsl(245.3 95.5% 43.9%) |
| HSB / HSV | hsb(245.3 97.7% 85.9%) |
| HWB | hwb(245.3 2.0% 14.1%) |
| CMYK (formula) | cmyk(89/98/0/14) |
| CMYK (FOGRA39 coated) | cmyk(94/79/0/0) |
| CIELAB (D50) | lab(25.58 60.22 -98.24) |
| LCh | lch(25.58 115.23 301.5) |
| OKLab | oklab(0.4101 -0.0154 -0.2737) |
| OKLCH | oklch(0.4101 0.2741 266.8) |
| CIE XYZ (D65) | color(xyz-d65 0.13216 0.05417 0.67369) |
| CIE xyY | xyY(0.1537 0.0630 0.0542) |
| Display P3 | color(display-p3 0.0845 0.0229 0.8240) |
| Linear sRGB | color(srgb-linear 0.00913 0.00152 0.70838) |
| CSS name | — |
Text on #1805DB
White textWCAG 10.08:1 · APCA Lc 95
Black textWCAG 2.08:1 · APCA Lc 14
Color blindness
Tints and shades
#E1EEFF
#C0D7FF
#9ABBFF
#759EFF
#517EFF
#3158FF
#2035F4
#1800D7
#1100A9
#090074
#030043