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Recognised as Colour

#3871A2

  • #3871A2
  • Blue
  • Dark
  • Nearest: Steel blue

#3871A2 is a blue with RGB values 56, 113, 162 and HSL 208°, 49%, 43%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3871A2#3871A2
HEX#3871A2
RGBrgb(56, 113, 162)
RGB (0–1)0.2196, 0.4431, 0.6353
RGB percentages22%, 44.3%, 63.5%
HSLhsl(207.7, 48.6%, 42.7%)
HSV / HSBhsv(207.7, 65.4%, 63.5%)
CMYK65.4%, 30.2%, 0%, 36.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,699,106
CSS custom property--colour: #3871A2;

Brightness & contrast

Relative luminance0.1526WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.18:1
Contrast with white5.18:1WCAG normal text: AA
Contrast with black4.05:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#C78E5D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5C73A4no red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#4D68A1no green cones; the most common form, about 1% of men; ΔE 10 from the original
Tritanopia#007D82no blue cones; rare, and affects men and women equally; ΔE 31.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.18:1WCAG large text: AAA
Contrast with black, large text4.05:1WCAG large text: AA

Named colours

Steel blue · ΔE 6.6Slate grey · ΔE 22.4Light slate grey · ΔE 23.1Cornflower blue · ΔE 26.5Dim grey · ΔE 32.1Deep skyblue · ΔE 32.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 6.62, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A26938
Analogous#38A29E, #383CA2
Triadic#A23871, #71A238
Split complementary#A2383C, #A29E38
Tetradic#9E38A2, #A26938, #3CA238

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BED5E8
Lighter +30%#98BCDB
Lighter +20%#72A3CE
Lighter +10%#4C8BC1
Darker −10%#2B577C
Darker −20%#1E3C56
Darker −30%#112230
Darker −40%#04070A
More saturated +25%#1D73BD
Less saturated −25%#536F87

Channel breakdown

R56
G113
B162
Red56 (22%)
Green113 (44.3%)
Blue162 (63.5%)
Hue207.74°
Saturation (HSL)48.62%
Lightness42.75%
Dominant channelBlue
Hex per channelR 38 · G 71 · B A2

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Every value on this page was computed from “3871a2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.