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Recognised as Colour

#2B439F

  • #2B439F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B439F is a blue with RGB values 43, 67, 159 and HSL 228°, 57%, 40%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B439F#2B439F
HEX#2B439F
RGBrgb(43, 67, 159)
RGB (0–1)0.1686, 0.2627, 0.6235
RGB percentages16.9%, 26.3%, 62.4%
HSLhsl(227.6, 57.4%, 39.6%)
HSV / HSBhsv(227.6, 73%, 62.4%)
CMYK73%, 57.9%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,835,359
CSS custom property--colour: #2B439F;

Brightness & contrast

Relative luminance0.07031WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.73:1
Contrast with white8.73:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#D4BC60

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051A2no red cones; affects about 1% of men; ΔE 12.6 from the original
Deuteranopia#00469Dno green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#005A6Ano blue cones; rare, and affects men and women equally; ΔE 54.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.73:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.9Midnight blue · ΔE 18.2Slate blue · ΔE 19Rebecca purple · ΔE 20Royal blue · ΔE 20.5Medium purple · ΔE 26.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F872B
Analogous#2B7D9F, #4D2B9F
Triadic#9F2B43, #439F2B
Split complementary#9F4D2B, #7D9F2B
Tetradic#9F2B7D, #9F872B, #2B9F4D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ADB9E9
Lighter +30%#8597DE
Lighter +20%#5D75D3
Lighter +10%#3654C7
Darker −10%#203277
Darker −20%#15214F
Darker −30%#0A1027
Darker −40%#000000
More saturated +25%#1234B8
Less saturated −25%#445286

Channel breakdown

R43
G67
B159
Red43 (16.9%)
Green67 (26.3%)
Blue159 (62.4%)
Hue227.59°
Saturation (HSL)57.43%
Lightness39.61%
Dominant channelBlue
Hex per channelR 2B · G 43 · B 9F

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Every value on this page was computed from “2b439f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.