Recognised as Colour
#1019B1
- #1019B1
- Blue
- Dark
- Nearest: Dark blue
#1019B1 is a blue with RGB values 16, 25, 177 and HSL 237°, 83%, 38%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#1019B1#1019B1
HEX#1019B1
RGBrgb(16, 25, 177)
RGB (0–1)0.0627, 0.098, 0.6941
RGB percentages6.3%, 9.8%, 69.4%
HSLhsl(236.6, 83.4%, 37.8%)
HSV / HSBhsv(236.6, 91%, 69.4%)
CMYK91%, 85.9%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,055,153
CSS custom property--colour: #1019B1;
Brightness & contrast
Relative luminance0.0398WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.69:1
Contrast with white11.69:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#EFE64E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.69:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B1A810
Analogous#1069B1, #5810B1
Triadic#B11019, #19B110
Split complementary#B15810, #6AB110
Tetradic#B11069, #B1A810, #10B158
Tints, shades & saturation
Channel breakdown
R16
G25
B177
Red16 (6.3%)
Green25 (9.8%)
Blue177 (69.4%)
Hue236.65°
Saturation (HSL)83.42%
Lightness37.84%
Dominant channelBlue
Hex per channelR 10 · G 19 · B B1
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