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Recognised as Colour

#133A42

  • #133A42
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#133A42 is a cyan with RGB values 19, 58, 66 and HSL 190°, 55%, 17%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#133A42#133A42
HEX#133A42
RGBrgb(19, 58, 66)
RGB (0–1)0.0745, 0.2275, 0.2588
RGB percentages7.5%, 22.7%, 25.9%
HSLhsl(190.2, 55.3%, 16.7%)
HSV / HSBhsv(190.2, 71.2%, 25.9%)
CMYK71.2%, 12.1%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,260,098
CSS custom property--colour: #133A42;

Brightness & contrast

Relative luminance0.03558WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.27:1
Contrast with white12.27:1WCAG normal text: AAA
Contrast with black1.71:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#ECC5BD

Colour vision & accessibility

Protanopia#343842no red cones; affects about 1% of men; ΔE 11.8 from the original
Deuteranopia#2D3342no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#003D3Cno blue cones; rare, and affects men and women equally; ΔE 8.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.27:1WCAG large text: AAA
Contrast with black, large text1.71:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.58, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#421B13
Analogous#134233, #132242
Triadic#42133A, #3A4213
Split complementary#421322, #423313
Tetradic#331342, #421B13, #224213

Tints, shades & saturation

Lighter +40%#53B9CE
Lighter +30%#35A2B9
Lighter +20%#2A8091
Lighter +10%#1E5D6A
Darker −10%#08171A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#08414D
Less saturated −25%#1E3337

Channel breakdown

R19
G58
B66
Red19 (7.5%)
Green58 (22.7%)
Blue66 (25.9%)
Hue190.21°
Saturation (HSL)55.29%
Lightness16.67%
Dominant channelBlue
Hex per channelR 13 · G 3A · B 42

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Every value on this page was computed from “133a42” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.