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Recognised as Colour

#143B90

  • #143B90
  • Blue
  • Dark
  • Nearest: Dark slateblue

#143B90 is a blue with RGB values 20, 59, 144 and HSL 221°, 76%, 32%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#143B90#143B90
HEX#143B90
RGBrgb(20, 59, 144)
RGB (0–1)0.0784, 0.2314, 0.5647
RGB percentages7.8%, 23.1%, 56.5%
HSLhsl(221.1, 75.6%, 32.2%)
HSV / HSBhsv(221.1, 86.1%, 56.5%)
CMYK86.1%, 59%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,325,968
CSS custom property--colour: #143B90;

Brightness & contrast

Relative luminance0.0529WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.2:1
Contrast with white10.2:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#EBC46F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004793no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#003C8Eno green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#00515Fno blue cones; rare, and affects men and women equally; ΔE 51.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.2:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.6Midnight blue · ΔE 16.1Rebecca purple · ΔE 23.1Slate blue · ΔE 24.5Royal blue · ΔE 25.6Medium purple · ΔE 31.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#906914
Analogous#147990, #2B1490
Triadic#90143B, #3B9014
Split complementary#902B14, #799014
Tetradic#901479, #906914, #14902B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#82A4EE
Lighter +30%#5683E7
Lighter +20%#2963E1
Lighter +10%#1A4DBD
Darker −10%#0E2963
Darker −20%#081636
Darker −30%#01040A
Darker −40%#000000
More saturated +25%#0034A4
Less saturated −25%#28437C

Channel breakdown

R20
G59
B144
Red20 (7.8%)
Green59 (23.1%)
Blue144 (56.5%)
Hue221.13°
Saturation (HSL)75.61%
Lightness32.16%
Dominant channelBlue
Hex per channelR 14 · G 3B · B 90

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Every value on this page was computed from “143b90” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.