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Recognised as Colour

#131D34

  • #131D34
  • Blue
  • Dark
  • Nearest: Black

#131D34 is a blue with RGB values 19, 29, 52 and HSL 222°, 46%, 14%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#131D34#131D34
HEX#131D34
RGBrgb(19, 29, 52)
RGB (0–1)0.0745, 0.1137, 0.2039
RGB percentages7.5%, 11.4%, 20.4%
HSLhsl(221.8, 46.5%, 13.9%)
HSV / HSBhsv(221.8, 63.5%, 20.4%)
CMYK63.5%, 44.2%, 0%, 79.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,252,660
CSS custom property--colour: #131D34;

Brightness & contrast

Relative luminance0.01265WCAG 2.x, 0 is black and 1 is white
Perceived brightness30.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.76:1
Contrast with white16.76:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#ECE2CB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#141F35no red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#101C34no green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#042226no blue cones; rare, and affects men and women equally; ΔE 17 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.76:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Black · ΔE 20.2Dark slate grey · ΔE 28.6Dim grey · ΔE 37.5Dark slateblue · ΔE 39.2Slate grey · ΔE 42.7Midnight blue · ΔE 43.5
Nearest named CSS colourBlack (#000000)ΔE 20.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#342A13
Analogous#132E34, #191334
Triadic#34131D, #1D3413
Split complementary#341913, #2E3413
Tetradic#34132E, #342A13, #133419

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5374C0
Lighter +30%#3C5BA4
Lighter +20%#2E477F
Lighter +10%#213259
Darker −10%#05080F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A1A3D
Less saturated −25%#1C202B

Channel breakdown

R19
G29
B52
Red19 (7.5%)
Green29 (11.4%)
Blue52 (20.4%)
Hue221.82°
Saturation (HSL)46.48%
Lightness13.92%
Dominant channelBlue
Hex per channelR 13 · G 1D · B 34

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Every value on this page was computed from “131d34” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.