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Recognised as Colour

#1156B9

  • #1156B9
  • Blue
  • Dark
  • Nearest: Royal blue

#1156B9 is a blue with RGB values 17, 86, 185 and HSL 215°, 83%, 40%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1156B9#1156B9
HEX#1156B9
RGBrgb(17, 86, 185)
RGB (0–1)0.0667, 0.3373, 0.7255
RGB percentages6.7%, 33.7%, 72.5%
HSLhsl(215.4, 83.2%, 39.6%)
HSV / HSBhsv(215.4, 90.8%, 72.5%)
CMYK90.8%, 53.5%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,136,313
CSS custom property--colour: #1156B9;

Brightness & contrast

Relative luminance0.10278WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.87:1
Contrast with white6.87:1WCAG normal text: AA
Contrast with black3.06:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#EEA946

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0062BCno red cones; affects about 1% of men; ΔE 9 from the original
Deuteranopia#0053B7no green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#006F7Fno blue cones; rare, and affects men and women equally; ΔE 57.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.87:1WCAG large text: AAA
Contrast with black, large text3.06:1WCAG large text: AA

Named colours

Royal blue · ΔE 14.2Slate blue · ΔE 18.6Dark slateblue · ΔE 18.8Dodgerblue · ΔE 23.5Medium purple · ΔE 25.7Cornflower blue · ΔE 26.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 14.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B97411
Analogous#11AAB9, #2011B9
Triadic#B91156, #56B911
Split complementary#B92011, #AAB911
Tetradic#B911AA, #B97411, #11B920

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0C3F6
Lighter +30%#71A6F2
Lighter +20%#4289EE
Lighter +10%#156CE8
Darker −10%#0D408A
Darker −20%#082B5C
Darker −30%#04152D
Darker −40%#000000
More saturated +25%#0053CA
Less saturated −25%#2A5BA0

Channel breakdown

R17
G86
B185
Red17 (6.7%)
Green86 (33.7%)
Blue185 (72.5%)
Hue215.36°
Saturation (HSL)83.17%
Lightness39.61%
Dominant channelBlue
Hex per channelR 11 · G 56 · B B9

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Every value on this page was computed from “1156b9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.