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Recognised as Colour

#2172BF

  • #2172BF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#2172BF is a blue with RGB values 33, 114, 191 and HSL 209°, 71%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#2172BF#2172BF
HEX#2172BF
RGBrgb(33, 114, 191)
RGB (0–1)0.1294, 0.4471, 0.749
RGB percentages12.9%, 44.7%, 74.9%
HSLhsl(209.2, 70.5%, 43.9%)
HSV / HSBhsv(209.2, 82.7%, 74.9%)
CMYK82.7%, 40.3%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,192,063
CSS custom property--colour: #2172BF;

Brightness & contrast

Relative luminance0.1612WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.97:1
Contrast with white4.97:1WCAG normal text: AA
Contrast with black4.22:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#DE8D40

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C77C2no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#3269BDno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#00848Fno blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.97:1WCAG large text: AAA
Contrast with black, large text4.22:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 15.8Steel blue · ΔE 17.8Dodgerblue · ΔE 21.2Dark slateblue · ΔE 27.7Royal blue · ΔE 28.6Slate blue · ΔE 33.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 15.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF6E21
Analogous#21BFBD, #2123BF
Triadic#BF2172, #72BF21
Split complementary#BF2123, #BFBD21
Tetradic#BD21BF, #BF6E21, #23BF21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9D7F3
Lighter +30%#8EBEEB
Lighter +20%#62A5E4
Lighter +10%#378CDC
Darker −10%#195894
Darker −20%#123E68
Darker −30%#0A243D
Darker −40%#030A11
More saturated +25%#0573DB
Less saturated −25%#3D71A3

Channel breakdown

R33
G114
B191
Red33 (12.9%)
Green114 (44.7%)
Blue191 (74.9%)
Hue209.24°
Saturation (HSL)70.54%
Lightness43.92%
Dominant channelBlue
Hex per channelR 21 · G 72 · B BF

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Every value on this page was computed from “2172bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.