Recognised as Colour
#172DA0
- #172DA0
- Blue
- Dark
- Nearest: Navy
#172DA0 is a blue with RGB values 23, 45, 160 and HSL 230°, 75%, 36%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Navy.
Colour values
#172DA0#172DA0
HEX#172DA0
RGBrgb(23, 45, 160)
RGB (0–1)0.0902, 0.1765, 0.6275
RGB percentages9%, 17.6%, 62.7%
HSLhsl(230.4, 74.9%, 35.9%)
HSV / HSBhsv(230.4, 85.6%, 62.7%)
CMYK85.6%, 71.9%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,519,008
CSS custom property--colour: #172DA0;
Brightness & contrast
Relative luminance0.04597WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.94:1
Contrast with white10.94:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#E8D25F
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.94:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A08A17
Analogous#1772A0, #4617A0
Triadic#A0172D, #2DA017
Split complementary#A04517, #72A017
Tetradic#A01772, #A08A17, #17A045
Tints, shades & saturation
Channel breakdown
R23
G45
B160
Red23 (9%)
Green45 (17.6%)
Blue160 (62.7%)
Hue230.36°
Saturation (HSL)74.86%
Lightness35.88%
Dominant channelBlue
Hex per channelR 17 · G 2D · B A0
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