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Recognised as Colour

#11499D

  • #11499D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#11499D is a blue with RGB values 17, 73, 157 and HSL 216°, 80%, 34%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#11499D#11499D
HEX#11499D
RGBrgb(17, 73, 157)
RGB (0–1)0.0667, 0.2863, 0.6157
RGB percentages6.7%, 28.6%, 61.6%
HSLhsl(216, 80.5%, 34.1%)
HSV / HSBhsv(216, 89.2%, 61.6%)
CMYK89.2%, 53.5%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,132,957
CSS custom property--colour: #11499D;

Brightness & contrast

Relative luminance0.07319WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.52:1
Contrast with white8.52:1WCAG normal text: AAA
Contrast with black2.46:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#EEB662

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0653A0no red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#00479Bno green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#005E6Cno blue cones; rare, and affects men and women equally; ΔE 49.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.52:1WCAG large text: AAA
Contrast with black, large text2.46:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.1Midnight blue · ΔE 22.8Royal blue · ΔE 23.6Slate blue · ΔE 24.7Rebecca purple · ΔE 26.9Cornflower blue · ΔE 30.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D6511
Analogous#118F9D, #1F119D
Triadic#9D1149, #499D11
Split complementary#9D1F11, #8F9D11
Tetradic#9D118F, #9D6511, #119D1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88B2F2
Lighter +30%#5A95ED
Lighter +20%#2C77E8
Lighter +10%#165ECB
Darker −10%#0C346F
Darker −20%#071E41
Darker −30%#020913
Darker −40%#000000
More saturated +25%#0046AE
Less saturated −25%#274D87

Channel breakdown

R17
G73
B157
Red17 (6.7%)
Green73 (28.6%)
Blue157 (61.6%)
Hue216°
Saturation (HSL)80.46%
Lightness34.12%
Dominant channelBlue
Hex per channelR 11 · G 49 · B 9D

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Every value on this page was computed from “11499d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.