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Recognised as Colour

#123BFF

  • #123BFF
  • Blue
  • Dark
  • Nearest: Medium blue

#123BFF is a blue with RGB values 18, 59, 255 and HSL 230°, 100%, 54%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#123BFF#123BFF
HEX#123BFF
RGBrgb(18, 59, 255)
RGB (0–1)0.0706, 0.2314, 1
RGB percentages7.1%, 23.1%, 100%
HSLhsl(229.6, 100%, 53.5%)
HSV / HSBhsv(229.6, 92.9%, 100%)
CMYK92.9%, 76.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,195,007
CSS custom property--colour: #123BFF;

Brightness & contrast

Relative luminance0.10477WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.78:1
Contrast with white6.78:1WCAG normal text: AA
Contrast with black3.1:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#EDC400

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067FFno red cones; affects about 1% of men; ΔE 32.1 from the original
Deuteranopia#004FFCno green cones; the most common form, about 1% of men; ΔE 15.1 from the original
Tritanopia#00789Cno blue cones; rare, and affects men and women equally; ΔE 103.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.78:1WCAG large text: AAA
Contrast with black, large text3.1:1WCAG large text: AA

Named colours

Medium blue · ΔE 16.1Blue · ΔE 22Blue violet · ΔE 24.4Dark violet · ΔE 30.9Dark orchid · ΔE 37.6Dark blue · ΔE 38.7
Nearest named CSS colourMedium blue (#0000CD)ΔE 16.09, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFD612
Analogous#12B1FF, #6012FF
Triadic#FF123B, #3BFF12
Split complementary#FF6012, #B1FF12
Tetradic#FF12B1, #FFD612, #12FF60

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEE4FF
Lighter +30%#ABBAFF
Lighter +20%#788FFF
Lighter +10%#4565FF
Darker −10%#0026DE
Darker −20%#001EAB
Darker −30%#001578
Darker −40%#000C45
More saturated +25%#123BFF
Less saturated −25%#304EE1

Channel breakdown

R18
G59
B255
Red18 (7.1%)
Green59 (23.1%)
Blue255 (100%)
Hue229.62°
Saturation (HSL)100%
Lightness53.53%
Dominant channelBlue
Hex per channelR 12 · G 3B · B FF

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Every value on this page was computed from “123bff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.