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Recognised as Colour

#0071DF

  • #0071DF
  • Blue
  • Dark
  • Nearest: Royal blue

#0071DF is a blue with RGB values 0, 113, 223 and HSL 210°, 100%, 44%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0071DF#0071DF
HEX#0071DF
RGBrgb(0, 113, 223)
RGB (0–1)0, 0.4431, 0.8745
RGB percentages0%, 44.3%, 87.5%
HSLhsl(209.6, 100%, 43.7%)
HSV / HSBhsv(209.6, 100%, 87.5%)
CMYK100%, 49.3%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer29,151
CSS custom property--colour: #0071DF;

Brightness & contrast

Relative luminance0.17138WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.74:1
Contrast with white4.74:1WCAG normal text: AA
Contrast with black4.43:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#FF8E20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#297CE3no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#006BDDno green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#008C9Dno blue cones; rare, and affects men and women equally; ΔE 61.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.74:1WCAG large text: AAA
Contrast with black, large text4.43:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.7Dodgerblue · ΔE 12.4Cornflower blue · ΔE 20.4Slate blue · ΔE 21.2Medium purple · ΔE 25.7Medium slateblue · ΔE 25.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.72, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF6E00
Analogous#00DFDD, #0002DF
Triadic#DF0071, #71DF00
Split complementary#DF0001, #DFDD00
Tetradic#DE00DF, #DF6E00, #02DF00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACD6FF
Lighter +30%#79BDFF
Lighter +20%#46A4FF
Lighter +10%#138BFF
Darker −10%#0057AC
Darker −20%#003D79
Darker −30%#002346
Darker −40%#000A13
More saturated +25%#0071DF
Less saturated −25%#1C71C3

Channel breakdown

R0
G113
B223
Red0 (0%)
Green113 (44.3%)
Blue223 (87.5%)
Hue209.6°
Saturation (HSL)100%
Lightness43.73%
Dominant channelBlue
Hex per channelR 00 · G 71 · B DF

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Every value on this page was computed from “0071df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.