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Colour

#3761A9

  • #3761A9
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3761A9 is a blue with RGB values 55, 97, 169 and HSL 218°, 51%, 44%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3761A9#3761A9
HEX#3761A9
RGBrgb(55, 97, 169)
RGB (0–1)0.2157, 0.3804, 0.6627
RGB percentages21.6%, 38%, 66.3%
HSLhsl(217.9, 50.9%, 43.9%)
HSV / HSBhsv(217.9, 67.5%, 66.3%)
CMYK67.5%, 42.6%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,629,481
CSS custom property--colour: #3761A9;

Brightness & contrast

Relative luminance0.12226WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.1:1
Contrast with white6.1:1WCAG normal text: AA
Contrast with black3.45:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#C89E56

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F68ACno red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#2D5DA8no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#00727Dno blue cones; rare, and affects men and women equally; ΔE 43.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.1:1WCAG large text: AAA
Contrast with black, large text3.45:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19.7Steel blue · ΔE 20.5Cornflower blue · ΔE 21.3Dodgerblue · ΔE 27.1Royal blue · ΔE 28.5Slate blue · ΔE 30.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A97F37
Analogous#379AA9, #4637A9
Triadic#A93761, #61A937
Split complementary#A94637, #9AA937
Tetradic#A9379A, #A97F37, #37A946

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1D1EB
Lighter +30%#9BB4DE
Lighter +20%#7497D2
Lighter +10%#4E7AC5
Darker −10%#2A4B83
Darker −20%#1E355C
Darker −30%#111F36
Darker −40%#05090F
More saturated +25%#1B5AC5
Less saturated −25%#53688D

Channel breakdown

R55
G97
B169
Red55 (21.6%)
Green97 (38%)
Blue169 (66.3%)
Hue217.89°
Saturation (HSL)50.89%
Lightness43.92%
Dominant channelBlue
Hex per channelR 37 · G 61 · B A9

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Every value on this page was computed from “3761a9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.