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Recognised as Colour

#0813BB

  • #0813BB
  • Blue
  • Dark
  • Nearest: Medium blue

#0813BB is a blue with RGB values 8, 19, 187 and HSL 236°, 92%, 38%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0813BB#0813BB
HEX#0813BB
RGBrgb(8, 19, 187)
RGB (0–1)0.0314, 0.0745, 0.7333
RGB percentages3.1%, 7.5%, 73.3%
HSLhsl(236.3, 91.8%, 38.2%)
HSV / HSBhsv(236.3, 95.7%, 73.3%)
CMYK95.7%, 89.8%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer529,339
CSS custom property--colour: #0813BB;

Brightness & contrast

Relative luminance0.04105WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.53:1
Contrast with white11.53:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#F7EC44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0042BFno red cones; affects about 1% of men; ΔE 28.8 from the original
Deuteranopia#002FB8no green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#00506Eno blue cones; rare, and affects men and women equally; ΔE 89.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.53:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.9Dark blue · ΔE 18.2Blue violet · ΔE 23.1Navy · ΔE 23.4Dark violet · ΔE 27Indigo · ΔE 30
Nearest named CSS colourMedium blue (#0000CD)ΔE 12.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBB008
Analogous#086DBB, #5608BB
Triadic#BB0813, #13BB08
Split complementary#BB5608, #6DBB08
Tetradic#BB086D, #BBB008, #08BB56

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#959BFA
Lighter +30%#646DF8
Lighter +20%#333FF6
Lighter +10%#0A18EC
Darker −10%#060E8A
Darker −20%#040959
Darker −30%#020428
Darker −40%#000000
More saturated +25%#000CC3
Less saturated −25%#2028A3

Channel breakdown

R8
G19
B187
Red8 (3.1%)
Green19 (7.5%)
Blue187 (73.3%)
Hue236.31°
Saturation (HSL)91.79%
Lightness38.24%
Dominant channelBlue
Hex per channelR 08 · G 13 · B BB

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Every value on this page was computed from “0813bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.