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Recognised as Colour

#2D72BB

  • #2D72BB
  • Blue
  • Dark
  • Nearest: Steel blue

#2D72BB is a blue with RGB values 45, 114, 187 and HSL 211°, 61%, 45%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2D72BB#2D72BB
HEX#2D72BB
RGBrgb(45, 114, 187)
RGB (0–1)0.1765, 0.4471, 0.7333
RGB percentages17.6%, 44.7%, 73.3%
HSLhsl(210.8, 61.2%, 45.5%)
HSV / HSBhsv(210.8, 75.9%, 73.3%)
CMYK75.9%, 39%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,978,491
CSS custom property--colour: #2D72BB;

Brightness & contrast

Relative luminance0.1618WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.96:1
Contrast with white4.96:1WCAG normal text: AA
Contrast with black4.24:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#D28D44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5077BEno red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#396ABAno green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#00838Dno blue cones; rare, and affects men and women equally; ΔE 42.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.96:1WCAG large text: AAA
Contrast with black, large text4.24:1WCAG large text: AA

Named colours

Steel blue · ΔE 15.7Cornflower blue · ΔE 16.3Dodgerblue · ΔE 23.2Dark slateblue · ΔE 27.6Royal blue · ΔE 30.4Deep skyblue · ΔE 33.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB762D
Analogous#2DB9BB, #2F2DBB
Triadic#BB2D72, #72BB2D
Split complementary#BB2F2D, #B9BB2D
Tetradic#BB2DB9, #BB762D, #2DBB2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C3D9F1
Lighter +30%#9ABFE7
Lighter +20%#71A5DD
Lighter +10%#488CD3
Darker −10%#235992
Darker −20%#194069
Darker −30%#0F2740
Darker −40%#050E17
More saturated +25%#1071D8
Less saturated −25%#4A739E

Channel breakdown

R45
G114
B187
Red45 (17.6%)
Green114 (44.7%)
Blue187 (73.3%)
Hue210.85°
Saturation (HSL)61.21%
Lightness45.49%
Dominant channelBlue
Hex per channelR 2D · G 72 · B BB

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Every value on this page was computed from “2d72bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.