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Colour

#1B72FF

  • #1B72FF
  • Blue
  • Dark
  • Nearest: Royal blue

#1B72FF is a blue with RGB values 27, 114, 255 and HSL 217°, 100%, 55%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1B72FF#1B72FF
HEX#1B72FF
RGBrgb(27, 114, 255)
RGB (0–1)0.1059, 0.4471, 1
RGB percentages10.6%, 44.7%, 100%
HSLhsl(217.1, 100%, 55.3%)
HSV / HSBhsv(217.1, 89.4%, 100%)
CMYK89.4%, 55.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,798,911
CSS custom property--colour: #1B72FF;

Brightness & contrast

Relative luminance0.19488WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.9:1
Contrast with white4.29:1WCAG normal text: Fail
Contrast with black4.9:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#E48D00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0085FFno red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#0071FCno green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#0096ADno blue cones; rare, and affects men and women equally; ΔE 76.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.29:1WCAG large text: AA
Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Royal blue · ΔE 12Medium slateblue · ΔE 16.9Slate blue · ΔE 21.1Dodgerblue · ΔE 24.1Medium purple · ΔE 28Cornflower blue · ΔE 34.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA81B
Analogous#1BE4FF, #361BFF
Triadic#FF1B72, #72FF1B
Split complementary#FF361B, #E4FF1B
Tetradic#FF1BE4, #FFA81B, #1BFF36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7F0FF
Lighter +30%#B4D1FF
Lighter +20%#81B1FF
Lighter +10%#4E92FF
Darker −10%#0058E7
Darker −20%#0045B4
Darker −30%#003181
Darker −40%#001E4E
More saturated +25%#1B72FF
Less saturated −25%#3779E3

Channel breakdown

R27
G114
B255
Red27 (10.6%)
Green114 (44.7%)
Blue255 (100%)
Hue217.11°
Saturation (HSL)100%
Lightness55.29%
Dominant channelBlue
Hex per channelR 1B · G 72 · B FF

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Every value on this page was computed from “1b72ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.