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Colour

#1700BB

  • #1700BB
  • Blue
  • Dark
  • Nearest: Medium blue

#1700BB is a blue with RGB values 23, 0, 187 and HSL 247°, 100%, 37%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1700BB#1700BB
HEX#1700BB
RGBrgb(23, 0, 187)
RGB (0–1)0.0902, 0, 0.7333
RGB percentages9%, 0%, 73.3%
HSLhsl(247.4, 100%, 36.7%)
HSV / HSBhsv(247.4, 100%, 73.3%)
CMYK87.7%, 100%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,507,515
CSS custom property--colour: #1700BB;

Brightness & contrast

Relative luminance0.0377WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.97:1
Contrast with white11.97:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#E8FF44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003FBFno red cones; affects about 1% of men; ΔE 31.8 from the original
Deuteranopia#002DB8no green cones; the most common form, about 1% of men; ΔE 21.4 from the original
Tritanopia#004C6Cno blue cones; rare, and affects men and women equally; ΔE 92.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.97:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Medium blue · ΔE 8.6Dark blue · ΔE 21.6Blue violet · ΔE 22.6Dark violet · ΔE 25.6Navy · ΔE 26.9Blue · ΔE 30.1
Nearest named CSS colourMedium blue (#0000CD)ΔE 8.57, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A4BB00
Analogous#0046BB, #7500BB
Triadic#BB1700, #00BB17
Split complementary#BB7400, #47BB00
Tetradic#BB0046, #A4BB00, #00BB75

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9788FF
Lighter +30%#6A55FF
Lighter +20%#3D22FF
Lighter +10%#1D00EE
Darker −10%#110088
Darker −20%#0A0055
Darker −30%#040022
Darker −40%#000000
More saturated +25%#1700BB
Less saturated −25%#2917A4

Channel breakdown

R23
G0
B187
Red23 (9%)
Green0 (0%)
Blue187 (73.3%)
Hue247.38°
Saturation (HSL)100%
Lightness36.67%
Dominant channelBlue
Hex per channelR 17 · G 00 · B BB

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Every value on this page was computed from “1700bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.