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Recognised as Colour

#1B08BB

  • #1B08BB
  • Blue
  • Dark
  • Nearest: Medium blue

#1B08BB is a blue with RGB values 27, 8, 187 and HSL 246°, 92%, 38%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1B08BB#1B08BB
HEX#1B08BB
RGBrgb(27, 8, 187)
RGB (0–1)0.1059, 0.0314, 0.7333
RGB percentages10.6%, 3.1%, 73.3%
HSLhsl(246.4, 91.8%, 38.2%)
HSV / HSBhsv(246.4, 95.7%, 73.3%)
CMYK85.6%, 95.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,771,707
CSS custom property--colour: #1B08BB;

Brightness & contrast

Relative luminance0.03995WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.67:1
Contrast with white11.67:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#E4F744

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0041BFno red cones; affects about 1% of men; ΔE 31.1 from the original
Deuteranopia#002FB8no green cones; the most common form, about 1% of men; ΔE 20.6 from the original
Tritanopia#004D6Dno blue cones; rare, and affects men and women equally; ΔE 90.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.67:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10.4Dark blue · ΔE 20.1Blue violet · ΔE 22.1Navy · ΔE 25.3Dark violet · ΔE 25.4Dark orchid · ΔE 30.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A8BB08
Analogous#084FBB, #7508BB
Triadic#BB1B08, #08BB1B
Split complementary#BB7408, #4FBB08
Tetradic#BB084E, #A8BB08, #08BB74

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9F95FA
Lighter +30%#7364F8
Lighter +20%#4733F6
Lighter +10%#220AEC
Darker −10%#14068A
Darker −20%#0D0459
Darker −30%#060228
Darker −40%#000000
More saturated +25%#1500C3
Less saturated −25%#2E20A3

Channel breakdown

R27
G8
B187
Red27 (10.6%)
Green8 (3.1%)
Blue187 (73.3%)
Hue246.37°
Saturation (HSL)91.79%
Lightness38.24%
Dominant channelBlue
Hex per channelR 1B · G 08 · B BB

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Every value on this page was computed from “1b08bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.