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Recognised as Colour

#133B43

  • #133B43
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#133B43 is a cyan with RGB values 19, 59, 67 and HSL 190°, 56%, 17%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#133B43#133B43
HEX#133B43
RGBrgb(19, 59, 67)
RGB (0–1)0.0745, 0.2314, 0.2627
RGB percentages7.5%, 23.1%, 26.3%
HSLhsl(190, 55.8%, 16.9%)
HSV / HSBhsv(190, 71.6%, 26.3%)
CMYK71.6%, 11.9%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,260,355
CSS custom property--colour: #133B43;

Brightness & contrast

Relative luminance0.03672WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.11:1
Contrast with white12.11:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#ECC4BC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#353943no red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#2E3443no green cones; the most common form, about 1% of men; ΔE 12.6 from the original
Tritanopia#003E3Dno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.11:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.2Dim grey · ΔE 26.1Black · ΔE 26.7Teal · ΔE 31.3Slate grey · ΔE 31.6Gray · ΔE 34.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.24, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#431B13
Analogous#134333, #132343
Triadic#43133B, #3B4313
Split complementary#431323, #433313
Tetradic#331343, #431B13, #234313

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#54BACE
Lighter +30%#35A4BA
Lighter +20%#2A8192
Lighter +10%#1E5E6B
Darker −10%#08181B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#08424E
Less saturated −25%#1E3438

Channel breakdown

R19
G59
B67
Red19 (7.5%)
Green59 (23.1%)
Blue67 (26.3%)
Hue190°
Saturation (HSL)55.81%
Lightness16.86%
Dominant channelBlue
Hex per channelR 13 · G 3B · B 43

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Every value on this page was computed from “133b43” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.