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Colour

#2D39B9

  • #2D39B9
  • Blue
  • Dark
  • Nearest: Slate blue

#2D39B9 is a blue with RGB values 45, 57, 185 and HSL 235°, 61%, 45%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#2D39B9#2D39B9
HEX#2D39B9
RGBrgb(45, 57, 185)
RGB (0–1)0.1765, 0.2235, 0.7255
RGB percentages17.6%, 22.4%, 72.5%
HSLhsl(234.9, 60.9%, 45.1%)
HSV / HSBhsv(234.9, 75.7%, 72.5%)
CMYK75.7%, 69.2%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,963,897
CSS custom property--colour: #2D39B9;

Brightness & contrast

Relative luminance0.06987WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.76:1
Contrast with white8.76:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#D2C646

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051BDno red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#0044B7no green cones; the most common form, about 1% of men; ΔE 11.1 from the original
Tritanopia#005C74no blue cones; rare, and affects men and women equally; ΔE 72.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.76:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Slate blue · ΔE 17.7Dark blue · ΔE 20Navy · ΔE 20.6Medium slateblue · ΔE 20.6Royal blue · ΔE 21.3Rebecca purple · ΔE 21.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.66, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B9AD2D
Analogous#2D7FB9, #672DB9
Triadic#B92D39, #39B92D
Split complementary#B9672D, #7FB92D
Tetradic#B92D7F, #B9AD2D, #2DB967

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2C6F0
Lighter +30%#999FE6
Lighter +20%#7079DC
Lighter +10%#4753D2
Darker −10%#232C90
Darker −20%#192067
Darker −30%#0F133E
Darker −40%#050615
More saturated +25%#1021D6
Less saturated −25%#4A519C

Channel breakdown

R45
G57
B185
Red45 (17.6%)
Green57 (22.4%)
Blue185 (72.5%)
Hue234.86°
Saturation (HSL)60.87%
Lightness45.1%
Dominant channelBlue
Hex per channelR 2D · G 39 · B B9

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Every value on this page was computed from “2d39b9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.