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Recognised as Colour

#001733

  • #001733
  • Blue
  • Dark
  • Nearest: Black

#001733 is a blue with RGB values 0, 23, 51 and HSL 213°, 100%, 10%. It is a dark colour, so white text on it reaches 17.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001733#001733
HEX#001733
RGBrgb(0, 23, 51)
RGB (0–1)0, 0.0902, 0.2
RGB percentages0%, 9%, 20%
HSLhsl(212.9, 100%, 10%)
HSV / HSBhsv(212.9, 100%, 20%)
CMYK100%, 54.9%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,939
CSS custom property--colour: #001733;

Brightness & contrast

Relative luminance0.00852WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.94:1
Contrast with white17.94:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#FFE8CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#071934no red cones; affects about 1% of men; ΔE 1.8 from the original
Deuteranopia#001532no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#001E22no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.94:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 22.8Dark slate grey · ΔE 33.2Dark slateblue · ΔE 38.3Midnight blue · ΔE 40.6Dim grey · ΔE 42.6Slate grey · ΔE 46.8
Nearest named CSS colourBlack (#000000)ΔE 22.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#331C00
Analogous#003033, #030033
Triadic#330017, #173300
Split complementary#330300, #303300
Tetradic#330030, #331C00, #003302

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0073FF
Lighter +30%#005CCC
Lighter +20%#004599
Lighter +10%#002E66
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001733
Less saturated −25%#06182D

Channel breakdown

R0
G23
B51
Red0 (0%)
Green23 (9%)
Blue51 (20%)
Hue212.94°
Saturation (HSL)100%
Lightness10%
Dominant channelBlue
Hex per channelR 00 · G 17 · B 33

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Every value on this page was computed from “hex 001733” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.