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Recognised as Colour

#1868B5

  • #1868B5
  • Blue
  • Dark
  • Nearest: Cornflower blue

#1868B5 is a blue with RGB values 24, 104, 181 and HSL 209°, 77%, 40%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1868B5#1868B5
HEX#1868B5
RGBrgb(24, 104, 181)
RGB (0–1)0.0941, 0.4078, 0.7098
RGB percentages9.4%, 40.8%, 71%
HSLhsl(209.4, 76.6%, 40.2%)
HSV / HSBhsv(209.4, 86.7%, 71%)
CMYK86.7%, 42.5%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,599,669
CSS custom property--colour: #1868B5;

Brightness & contrast

Relative luminance0.13431WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.7:1
Contrast with white5.7:1WCAG normal text: AA
Contrast with black3.69:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#E7974A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#416EB8no red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#2360B3no green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#007B85no blue cones; rare, and affects men and women equally; ΔE 45.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.7:1WCAG large text: AAA
Contrast with black, large text3.69:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 19Steel blue · ΔE 20.2Dodgerblue · ΔE 23.1Dark slateblue · ΔE 24.3Royal blue · ΔE 27.6Slate blue · ΔE 32
Nearest named CSS colourCornflower blue (#6495ED)ΔE 18.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B56518
Analogous#18B5B4, #1819B5
Triadic#B51868, #68B518
Split complementary#B51819, #B5B418
Tetradic#B418B5, #B56518, #19B518

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6CDF3
Lighter +30%#79B4ED
Lighter +20%#4C9BE7
Lighter +10%#1F82E1
Darker −10%#124E88
Darker −20%#0C345B
Darker −30%#061A2E
Darker −40%#000101
More saturated +25%#0068CD
Less saturated −25%#32689B

Channel breakdown

R24
G104
B181
Red24 (9.4%)
Green104 (40.8%)
Blue181 (71%)
Hue209.43°
Saturation (HSL)76.59%
Lightness40.2%
Dominant channelBlue
Hex per channelR 18 · G 68 · B B5

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Every value on this page was computed from “1868b5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.