Recognised as Colour
#13018A
- #13018A
- Blue
- Dark
- Nearest: Dark blue
#13018A is a blue with RGB values 19, 1, 138 and HSL 248°, 99%, 27%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#13018A#13018A
HEX#13018A
RGBrgb(19, 1, 138)
RGB (0–1)0.0745, 0.0039, 0.5412
RGB percentages7.5%, 0.4%, 54.1%
HSLhsl(247.9, 98.6%, 27.3%)
HSV / HSBhsv(247.9, 99.3%, 54.1%)
CMYK86.2%, 99.3%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,245,578
CSS custom property--colour: #13018A;
Brightness & contrast
Relative luminance0.01995WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.01:1
Contrast with white15.01:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#ECFE75
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.01:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#788A01
Analogous#01338A, #58018A
Triadic#8A1301, #018A13
Split complementary#8A5701, #348A01
Tetradic#8A0133, #788A01, #018A58
Tints, shades & saturation
Channel breakdown
R19
G1
B138
Red19 (7.5%)
Green1 (0.4%)
Blue138 (54.1%)
Hue247.88°
Saturation (HSL)98.56%
Lightness27.25%
Dominant channelBlue
Hex per channelR 13 · G 01 · B 8A
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