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Recognised as Colour

#3763AB

  • #3763AB
  • Blue
  • Dark
  • Nearest: Steel blue

#3763AB is a blue with RGB values 55, 99, 171 and HSL 217°, 51%, 44%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3763AB#3763AB
HEX#3763AB
RGBrgb(55, 99, 171)
RGB (0–1)0.2157, 0.3882, 0.6706
RGB percentages21.6%, 38.8%, 67.1%
HSLhsl(217.2, 51.3%, 44.3%)
HSV / HSBhsv(217.2, 67.8%, 67.1%)
CMYK67.8%, 42.1%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,629,995
CSS custom property--colour: #3763AB;

Brightness & contrast

Relative luminance0.12676WCAG 2.x, 0 is black and 1 is white
Perceived brightness100 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.94:1
Contrast with white5.94:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#C89C54

Colour vision & accessibility

Protanopia#426AAEno red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#2F5FAAno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#00747Eno blue cones; rare, and affects men and women equally; ΔE 44.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.94:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.83, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#AB7F37
Analogous#379DAB, #4537AB
Triadic#AB3763, #63AB37
Split complementary#AB4537, #9DAB37
Tetradic#AB379D, #AB7F37, #37AB45

Tints, shades & saturation

Lighter +40%#C2D2EC
Lighter +30%#9CB5DF
Lighter +20%#7599D3
Lighter +10%#4F7CC6
Darker −10%#2B4D84
Darker −20%#1E365E
Darker −30%#122037
Darker −40%#050A11
More saturated +25%#1B5CC7
Less saturated −25%#536A8F

Channel breakdown

R55
G99
B171
Red55 (21.6%)
Green99 (38.8%)
Blue171 (67.1%)
Hue217.24°
Saturation (HSL)51.33%
Lightness44.31%
Dominant channelBlue
Hex per channelR 37 · G 63 · B AB

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Every value on this page was computed from “3763ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.