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Recognised as Colour

#133F6D

  • #133F6D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#133F6D is a blue with RGB values 19, 63, 109 and HSL 211°, 70%, 25%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#133F6D#133F6D
HEX#133F6D
RGBrgb(19, 63, 109)
RGB (0–1)0.0745, 0.2471, 0.4275
RGB percentages7.5%, 24.7%, 42.7%
HSLhsl(210.7, 70.3%, 25.1%)
HSV / HSBhsv(210.7, 82.6%, 42.7%)
CMYK82.6%, 42.2%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,261,421
CSS custom property--colour: #133F6D;

Brightness & contrast

Relative luminance0.04798WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.72:1
Contrast with white10.72:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#ECC092

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#29426Fno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#1A3A6Cno green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#004A50no blue cones; rare, and affects men and women equally; ΔE 30 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.72:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.8Steel blue · ΔE 27.3Dark slate grey · ΔE 31.5Slate grey · ΔE 34Midnight blue · ΔE 35.6Dim grey · ΔE 36.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D4113
Analogous#136C6D, #14136D
Triadic#6D133F, #3F6D13
Split complementary#6D1413, #6C6D13
Tetradic#6D136C, #6D4113, #136D14

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#67A5E5
Lighter +30%#3C8BDD
Lighter +20%#2271C4
Lighter +10%#1B5898
Darker −10%#0B2642
Darker −20%#040D16
Darker −30%#000000
Darker −40%#000000
More saturated +25%#033F7D
Less saturated −25%#233F5D

Channel breakdown

R19
G63
B109
Red19 (7.5%)
Green63 (24.7%)
Blue109 (42.7%)
Hue210.67°
Saturation (HSL)70.31%
Lightness25.1%
Dominant channelBlue
Hex per channelR 13 · G 3F · B 6D

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Every value on this page was computed from “133f6d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.