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Recognised as Colour

#143A9F

  • #143A9F
  • Blue
  • Dark
  • Nearest: Midnight blue

#143A9F is a blue with RGB values 20, 58, 159 and HSL 224°, 78%, 35%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#143A9F#143A9F
HEX#143A9F
RGBrgb(20, 58, 159)
RGB (0–1)0.0784, 0.2275, 0.6235
RGB percentages7.8%, 22.7%, 62.4%
HSLhsl(223.6, 77.7%, 35.1%)
HSV / HSBhsv(223.6, 87.4%, 62.4%)
CMYK87.4%, 63.5%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,325,727
CSS custom property--colour: #143A9F;

Brightness & contrast

Relative luminance0.05678WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.83:1
Contrast with white9.83:1WCAG normal text: AAA
Contrast with black2.14:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#EBC560

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004AA2no red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#003D9Dno green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#005567no blue cones; rare, and affects men and women equally; ΔE 59.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.83:1WCAG large text: AAA
Contrast with black, large text2.14:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 15.9Dark slateblue · ΔE 16.2Slate blue · ΔE 18.8Rebecca purple · ΔE 19.4Royal blue · ΔE 20.6Indigo · ΔE 26
Nearest named CSS colourMidnight blue (#191970)ΔE 15.89, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F7914
Analogous#14809F, #33149F
Triadic#9F143A, #3A9F14
Split complementary#9F3314, #809F14
Tetradic#9F1480, #9F7914, #149F33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8EA9F1
Lighter +30%#6187EB
Lighter +20%#3464E5
Lighter +10%#1A4BCC
Darker −10%#0E2972
Darker −20%#091944
Darker −30%#030817
Darker −40%#000000
More saturated +25%#0031B3
Less saturated −25%#2A4489

Channel breakdown

R20
G58
B159
Red20 (7.8%)
Green58 (22.7%)
Blue159 (62.4%)
Hue223.6°
Saturation (HSL)77.65%
Lightness35.1%
Dominant channelBlue
Hex per channelR 14 · G 3A · B 9F

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Every value on this page was computed from “143a9f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.