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Recognised as Colour

#1117BB

  • #1117BB
  • Blue
  • Dark
  • Nearest: Medium blue

#1117BB is a blue with RGB values 17, 23, 187 and HSL 238°, 83%, 40%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1117BB#1117BB
HEX#1117BB
RGBrgb(17, 23, 187)
RGB (0–1)0.0667, 0.0902, 0.7333
RGB percentages6.7%, 9%, 73.3%
HSLhsl(237.9, 83.3%, 40%)
HSV / HSBhsv(237.9, 90.9%, 73.3%)
CMYK90.9%, 87.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,120,187
CSS custom property--colour: #1117BB;

Brightness & contrast

Relative luminance0.0432WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.27:1
Contrast with white11.27:1WCAG normal text: AAA
Contrast with black1.86:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#EEE844

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0043BFno red cones; affects about 1% of men; ΔE 27.8 from the original
Deuteranopia#0031B8no green cones; the most common form, about 1% of men; ΔE 17.1 from the original
Tritanopia#00506Eno blue cones; rare, and affects men and women equally; ΔE 88.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.27:1WCAG large text: AAA
Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Medium blue · ΔE 14.6Dark blue · ΔE 17.3Navy · ΔE 22.3Blue violet · ΔE 22.9Dark violet · ΔE 27Indigo · ΔE 28.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.63, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBB511
Analogous#116CBB, #6011BB
Triadic#BB1117, #17BB11
Split complementary#BB6011, #6CBB11
Tetradic#BB116C, #BBB511, #11BB60

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2A5F7
Lighter +30%#7377F2
Lighter +20%#444AEE
Lighter +10%#151DEA
Darker −10%#0D118C
Darker −20%#080C5E
Darker −30%#04062F
Darker −40%#000000
More saturated +25%#0007CC
Less saturated −25%#2A2FA2

Channel breakdown

R17
G23
B187
Red17 (6.7%)
Green23 (9%)
Blue187 (73.3%)
Hue237.88°
Saturation (HSL)83.33%
Lightness40%
Dominant channelBlue
Hex per channelR 11 · G 17 · B BB

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Every value on this page was computed from “1117bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.