Blue Family
Dark Brightness
Luminance 2.4%
#12128B · Nocturne Ultramarine
RGB(18, 18, 139) • HSL(240°, 77%, 31%) • CMYK(87%, 87%, 0%, 45%)
Color Conversion & Technical Formats
HEX
#12128B
RGB
rgb(18, 18, 139)
HSL
hsl(240, 77%, 31%)
HSV / HSB
hsv(240°, 87%, 55%)
CMYK
cmyk(87%, 87%, 0%, 45%)
CSS Variable
--color-nocturne-ultramarine: #12128b;
Color Variations (Tints, Shades & Tones)
Click any variation swatch to inspect its full color page, or click the HEX badge to copy.
Color Combinations & Harmonies
WCAG Contrast Checker
On White #FFFFFF
14.14 : 1
WCAG AA Pass
On Black #000000
1.49 : 1
Low Contrast