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Colour

#1B50BA

  • #1B50BA
  • Blue
  • Dark
  • Nearest: Royal blue

#1B50BA is a blue with RGB values 27, 80, 186 and HSL 220°, 75%, 42%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#1B50BA#1B50BA
HEX#1B50BA
RGBrgb(27, 80, 186)
RGB (0–1)0.1059, 0.3137, 0.7294
RGB percentages10.6%, 31.4%, 72.9%
HSLhsl(220, 74.6%, 41.8%)
HSV / HSBhsv(220, 85.5%, 72.9%)
CMYK85.5%, 57%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,790,138
CSS custom property--colour: #1B50BA;

Brightness & contrast

Relative luminance0.09516WCAG 2.x, 0 is black and 1 is white
Perceived brightness89 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.23:1
Contrast with white7.23:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#E4AF45

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005EBEno red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#0050B8no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#006B7Dno blue cones; rare, and affects men and women equally; ΔE 61 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.23:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail

Named colours

Royal blue · ΔE 12.1Slate blue · ΔE 15.1Dark slateblue · ΔE 19.6Medium slateblue · ΔE 23.5Rebecca purple · ΔE 23.6Medium purple · ΔE 24.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BA851B
Analogous#1BA0BA, #361BBA
Triadic#BA1B50, #50BA1B
Split complementary#BA351B, #9FBA1B
Tetradic#BA1B9F, #BA851B, #1BBA35

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEC5F3
Lighter +30%#81A5ED
Lighter +20%#5585E6
Lighter +10%#2865E0
Darker −10%#153D8D
Darker −20%#0E2A61
Darker −30%#081734
Darker −40%#010308
More saturated +25%#0047D5
Less saturated −25%#36599F

Channel breakdown

R27
G80
B186
Red27 (10.6%)
Green80 (31.4%)
Blue186 (72.9%)
Hue220°
Saturation (HSL)74.65%
Lightness41.76%
Dominant channelBlue
Hex per channelR 1B · G 50 · B BA

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Every value on this page was computed from “1b50ba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.