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Recognised as Colour

#133B44

  • #133B44
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#133B44 is a cyan with RGB values 19, 59, 68 and HSL 191°, 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

#133B44#133B44
HEX#133B44
RGBrgb(19, 59, 68)
RGB (0–1)0.0745, 0.2314, 0.2667
RGB percentages7.5%, 23.1%, 26.7%
HSLhsl(191, 56.3%, 17.1%)
HSV / HSBhsv(191, 72.1%, 26.7%)
CMYK72.1%, 13.2%, 0%, 73.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,260,356
CSS custom property--colour: #133B44;

Brightness & contrast

Relative luminance0.03684WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.09:1
Contrast with white12.09:1WCAG normal text: AAA
Contrast with black1.74:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#ECC4BB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#353945no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#2E3444no green cones; the most common form, about 1% of men; ΔE 12.5 from the original
Tritanopia#003E3Eno 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 text12.09:1WCAG large text: AAA
Contrast with black, large text1.74:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.6Dim grey · ΔE 26.1Black · ΔE 26.8Slate grey · ΔE 31.4Teal · ΔE 31.5Gray · ΔE 34.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.57, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#441C13
Analogous#134435, #132344
Triadic#44133B, #3B4413
Split complementary#441323, #443513
Tetradic#351344, #441C13, #234413

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#54B9CF
Lighter +30%#34A3BC
Lighter +20%#298094
Lighter +10%#1E5E6C
Darker −10%#08181C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#08424F
Less saturated −25%#1E3439

Channel breakdown

R19
G59
B68
Red19 (7.5%)
Green59 (23.1%)
Blue68 (26.7%)
Hue191.02°
Saturation (HSL)56.32%
Lightness17.06%
Dominant channelBlue
Hex per channelR 13 · G 3B · B 44

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Every value on this page was computed from “133b44” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.