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Recognised as Colour

#133C90

  • #133C90
  • Blue
  • Dark
  • Nearest: Dark slateblue

#133C90 is a blue with RGB values 19, 60, 144 and HSL 220°, 77%, 32%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#133C90#133C90
HEX#133C90
RGBrgb(19, 60, 144)
RGB (0–1)0.0745, 0.2353, 0.5647
RGB percentages7.5%, 23.5%, 56.5%
HSLhsl(220.3, 76.7%, 32%)
HSV / HSBhsv(220.3, 86.8%, 56.5%)
CMYK86.8%, 58.3%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,260,688
CSS custom property--colour: #133C90;

Brightness & contrast

Relative luminance0.05384WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.11:1
Contrast with white10.11:1WCAG normal text: AAA
Contrast with black2.08:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#ECC36F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004893no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#003C8Eno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#005160no blue cones; rare, and affects men and women equally; ΔE 50.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.11:1WCAG large text: AAA
Contrast with black, large text2.08:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.6Midnight blue · ΔE 16.8Rebecca purple · ΔE 23.7Slate blue · ΔE 25Royal blue · ΔE 25.8Medium purple · ΔE 32
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#906713
Analogous#137A90, #291390
Triadic#90133C, #3C9013
Split complementary#902913, #7A9013
Tetradic#90137A, #906713, #139029

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#81A5EE
Lighter +30%#5484E8
Lighter +20%#2764E2
Lighter +10%#194FBD
Darker −10%#0D2963
Darker −20%#071636
Darker −30%#010409
Darker −40%#000000
More saturated +25%#0035A3
Less saturated −25%#27437C

Channel breakdown

R19
G60
B144
Red19 (7.5%)
Green60 (23.5%)
Blue144 (56.5%)
Hue220.32°
Saturation (HSL)76.69%
Lightness31.96%
Dominant channelBlue
Hex per channelR 13 · G 3C · B 90

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Every value on this page was computed from “133c90” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.