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Recognised as Colour

#2B01DF

  • #2B01DF
  • Blue
  • Dark
  • Nearest: Medium blue

#2B01DF is a blue with RGB values 43, 1, 223 and HSL 251°, 99%, 44%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2B01DF#2B01DF
HEX#2B01DF
RGBrgb(43, 1, 223)
RGB (0–1)0.1686, 0.0039, 0.8745
RGB percentages16.9%, 0.4%, 87.5%
HSLhsl(251.4, 99.1%, 43.9%)
HSV / HSBhsv(251.4, 99.6%, 87.5%)
CMYK80.7%, 99.6%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,818,527
CSS custom property--colour: #2B01DF;

Brightness & contrast

Relative luminance0.05863WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.67:1
Contrast with white9.67:1WCAG normal text: AAA
Contrast with black2.17:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#D4FE20

Colour vision & accessibility

Protanopia#004EE4no red cones; affects about 1% of men; ΔE 36.4 from the original
Deuteranopia#003ADCno green cones; the most common form, about 1% of men; ΔE 25.2 from the original
Tritanopia#005C82no blue cones; rare, and affects men and women equally; ΔE 105.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.67:1WCAG large text: AAA
Contrast with black, large text2.17:1WCAG large text: Fail

Named colours

Nearest named CSS colourMedium blue (#0000CD)ΔE 7.16, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#B5DF01
Analogous#0146DF, #9A01DF
Triadic#DF2B01, #01DF2B
Split complementary#DF9A01, #46DF01
Tetradic#DF0146, #B5DF01, #01DF9A

Tints, shades & saturation

Lighter +40%#BDADFF
Lighter +30%#947BFE
Lighter +20%#6A48FE
Lighter +10%#4115FE
Darker −10%#2101AC
Darker −20%#170179
Darker −30%#0E0047
Darker −40%#040014
More saturated +25%#2A00E0
Less saturated −25%#3C1DC3

Channel breakdown

R43
G1
B223
Red43 (16.9%)
Green1 (0.4%)
Blue223 (87.5%)
Hue251.35°
Saturation (HSL)99.11%
Lightness43.92%
Dominant channelBlue
Hex per channelR 2B · G 01 · B DF

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Every value on this page was computed from “2b01df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.