Recognised as Colour
#010091
- #010091
- Blue
- Dark
- Nearest: Dark blue
#010091 is a blue with RGB values 1, 0, 145 and HSL 240°, 100%, 28%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#010091#010091
HEX#010091
RGBrgb(1, 0, 145)
RGB (0–1)0.0039, 0, 0.5686
RGB percentages0.4%, 0%, 56.9%
HSLhsl(240.4, 100%, 28.4%)
HSV / HSBhsv(240.4, 100%, 56.9%)
CMYK99.3%, 100%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer65,681
CSS custom property--colour: #010091;
Brightness & contrast
Relative luminance0.02051WCAG 2.x, 0 is black and 1 is white
Perceived brightness49 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.89:1
Contrast with white14.89:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#0B0B0B
Inverted#FEFF6E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.89:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#909100
Analogous#004891, #490091
Triadic#910100, #009101
Split complementary#914900, #489100
Tetradic#910048, #909100, #009149
Tints, shades & saturation
Channel breakdown
R1
G0
B145
Red1 (0.4%)
Green0 (0%)
Blue145 (56.9%)
Hue240.41°
Saturation (HSL)100%
Lightness28.43%
Dominant channelBlue
Hex per channelR 01 · G 00 · B 91
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