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Recognised as Colour

#2B4473

  • #2B4473
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B4473 is a blue with RGB values 43, 68, 115 and HSL 219°, 46%, 31%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B4473#2B4473
HEX#2B4473
RGBrgb(43, 68, 115)
RGB (0–1)0.1686, 0.2667, 0.451
RGB percentages16.9%, 26.7%, 45.1%
HSLhsl(219.2, 45.6%, 31%)
HSV / HSBhsv(219.2, 62.6%, 45.1%)
CMYK62.6%, 40.9%, 0%, 54.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,835,571
CSS custom property--colour: #2B4473;

Brightness & contrast

Relative luminance0.05886WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.65:1
Contrast with white9.65:1WCAG normal text: AAA
Contrast with black2.18:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#D4BB8C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#304875no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#264272no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#004F56no blue cones; rare, and affects men and women equally; ΔE 31.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.65:1WCAG large text: AAA
Contrast with black, large text2.18:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.2Steel blue · ΔE 25.7Slate grey · ΔE 31.8Dark slate grey · ΔE 31.9Light slate grey · ΔE 33.9Dim grey · ΔE 34.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#735A2B
Analogous#2B6873, #362B73
Triadic#732B44, #44732B
Split complementary#73362B, #68732B
Tetradic#732B68, #735A2B, #2B7336

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#93ABD7
Lighter +30%#6E8EC9
Lighter +20%#4971BB
Lighter +10%#395A98
Darker −10%#1D2E4E
Darker −20%#0F1829
Darker −30%#010204
Darker −40%#000000
More saturated +25%#173E87
Less saturated −25%#3F4A5F

Channel breakdown

R43
G68
B115
Red43 (16.9%)
Green68 (26.7%)
Blue115 (45.1%)
Hue219.17°
Saturation (HSL)45.57%
Lightness30.98%
Dominant channelBlue
Hex per channelR 2B · G 44 · B 73

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Every value on this page was computed from “2b4473” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.