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Recognised as Colour

#143AB7

  • #143AB7
  • Blue
  • Dark
  • Nearest: Slate blue

#143AB7 is a blue with RGB values 20, 58, 183 and HSL 226°, 80%, 40%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#143AB7#143AB7
HEX#143AB7
RGBrgb(20, 58, 183)
RGB (0–1)0.0784, 0.2275, 0.7176
RGB percentages7.8%, 22.7%, 71.8%
HSLhsl(226, 80.3%, 39.8%)
HSV / HSBhsv(226, 89.1%, 71.8%)
CMYK89.1%, 68.3%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,325,751
CSS custom property--colour: #143AB7;

Brightness & contrast

Relative luminance0.06594WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.06:1
Contrast with white9.06:1WCAG normal text: AAA
Contrast with black2.32:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#EBC548

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0050BBno red cones; affects about 1% of men; ΔE 16.5 from the original
Deuteranopia#0041B5no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#005D74no blue cones; rare, and affects men and women equally; ΔE 71.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.06:1WCAG large text: AAA
Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Slate blue · ΔE 18.2Royal blue · ΔE 20.3Dark blue · ΔE 21.1Navy · ΔE 21.3Medium slateblue · ΔE 22Rebecca purple · ΔE 22.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 18.18, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B79114
Analogous#148CB7, #4014B7
Triadic#B7143A, #3AB714
Split complementary#B74014, #8BB714
Tetradic#B7148B, #B79114, #14B740

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2B5F5
Lighter +30%#7491F0
Lighter +20%#466DEB
Lighter +10%#1949E5
Darker −10%#0F2B89
Darker −20%#0A1D5B
Darker −30%#050E2D
Darker −40%#000000
More saturated +25%#002FCB
Less saturated −25%#2D489E

Channel breakdown

R20
G58
B183
Red20 (7.8%)
Green58 (22.7%)
Blue183 (71.8%)
Hue226.01°
Saturation (HSL)80.3%
Lightness39.8%
Dominant channelBlue
Hex per channelR 14 · G 3A · B B7

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Every value on this page was computed from “143ab7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.