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Recognised as Colour

#1963BB

  • #1963BB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#1963BB is a blue with RGB values 25, 99, 187 and HSL 213°, 76%, 42%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1963BB#1963BB
HEX#1963BB
RGBrgb(25, 99, 187)
RGB (0–1)0.098, 0.3882, 0.7333
RGB percentages9.8%, 38.8%, 73.3%
HSLhsl(212.6, 76.4%, 41.6%)
HSV / HSBhsv(212.6, 86.6%, 73.3%)
CMYK86.6%, 47.1%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,663,931
CSS custom property--colour: #1963BB;

Brightness & contrast

Relative luminance0.12718WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.93:1
Contrast with white5.93:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#E69C44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#316CBEno red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#005DB9no green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#007886no blue cones; rare, and affects men and women equally; ΔE 50.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.93:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 20Royal blue · ΔE 20.3Dodgerblue · ΔE 20.3Dark slateblue · ΔE 21.2Slate blue · ΔE 25.3Steel blue · ΔE 27.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 19.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB7119
Analogous#19B4BB, #2019BB
Triadic#BB1963, #63BB19
Split complementary#BB2019, #B4BB19
Tetradic#BB19B4, #BB7119, #19BB20

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACCDF4
Lighter +30%#7FB2EE
Lighter +20%#5297E8
Lighter +10%#257BE2
Darker −10%#134B8E
Darker −20%#0D3361
Darker −30%#071C34
Darker −40%#010407
More saturated +25%#0061D4
Less saturated −25%#3465A1

Channel breakdown

R25
G99
B187
Red25 (9.8%)
Green99 (38.8%)
Blue187 (73.3%)
Hue212.59°
Saturation (HSL)76.42%
Lightness41.57%
Dominant channelBlue
Hex per channelR 19 · G 63 · B BB

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Every value on this page was computed from “1963bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.