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Recognised as Colour

#1F73DC

  • #1F73DC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F73DC is a blue with RGB values 31, 115, 220 and HSL 213°, 75%, 49%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F73DC#1F73DC
HEX#1F73DC
RGBrgb(31, 115, 220)
RGB (0–1)0.1216, 0.451, 0.8627
RGB percentages12.2%, 45.1%, 86.3%
HSLhsl(213.3, 75.3%, 49.2%)
HSV / HSBhsv(213.3, 85.9%, 86.3%)
CMYK85.9%, 47.7%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,061,276
CSS custom property--colour: #1F73DC;

Brightness & contrast

Relative luminance0.1772WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.62:1
Contrast with white4.62:1WCAG normal text: AA
Contrast with black4.54:1WCAG normal text: AA
Greyscale equivalent#696969
Inverted#E08C23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#357EE0no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#006DDAno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#008C9Dno blue cones; rare, and affects men and women equally; ΔE 58.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.62:1WCAG large text: AAA
Contrast with black, large text4.54:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.6Royal blue · ΔE 12.7Cornflower blue · ΔE 17.7Slate blue · ΔE 21.9Medium purple · ΔE 25.1Medium slateblue · ΔE 27.1
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC881F
Analogous#1FD2DC, #291FDC
Triadic#DC1F73, #73DC1F
Split complementary#DC291F, #D2DC1F
Tetradic#DC1FD2, #DC881F, #1FDC29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFE1F8
Lighter +30%#A2C6F2
Lighter +20%#75AAEC
Lighter +10%#498EE5
Darker −10%#195CAF
Darker −20%#124483
Darker −30%#0C2D56
Darker −40%#061629
More saturated +25%#0070FB
Less saturated −25%#3E76BD

Channel breakdown

R31
G115
B220
Red31 (12.2%)
Green115 (45.1%)
Blue220 (86.3%)
Hue213.33°
Saturation (HSL)75.3%
Lightness49.22%
Dominant channelBlue
Hex per channelR 1F · G 73 · B DC

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Every value on this page was computed from “1f73dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.