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Recognised as Colour

#004973

  • #004973
  • Blue
  • Dark
  • Nearest: Steel blue

#004973 is a blue with RGB values 0, 73, 115 and HSL 202°, 100%, 23%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#004973#004973
HEX#004973
RGBrgb(0, 73, 115)
RGB (0–1)0, 0.2863, 0.451
RGB percentages0%, 28.6%, 45.1%
HSLhsl(201.9, 100%, 22.5%)
HSV / HSBhsv(201.9, 100%, 45.1%)
CMYK100%, 36.5%, 0%, 54.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,803
CSS custom property--colour: #004973;

Brightness & contrast

Relative luminance0.06003WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.54:1
Contrast with white9.54:1WCAG normal text: AAA
Contrast with black2.2:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#FFB68C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#354A75no red cones; affects about 1% of men; ΔE 8.7 from the original
Deuteranopia#254172no green cones; the most common form, about 1% of men; ΔE 9.7 from the original
Tritanopia#005358no blue cones; rare, and affects men and women equally; ΔE 26.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.54:1WCAG large text: AAA
Contrast with black, large text2.2:1WCAG large text: Fail

Named colours

Steel blue · ΔE 23.2Dark slate grey · ΔE 27.5Slate grey · ΔE 30.2Dark slateblue · ΔE 31.3Light slate grey · ΔE 32.3Dim grey · ΔE 33.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 23.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#732A00
Analogous#007364, #000F73
Triadic#730049, #497300
Split complementary#730010, #736400
Tetradic#630073, #732A00, #0F7300

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#40B9FF
Lighter +30%#0DA7FF
Lighter +20%#008AD9
Lighter +10%#0069A6
Darker −10%#002940
Darker −20%#00080D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004973
Less saturated −25%#0E4565

Channel breakdown

R0
G73
B115
Red0 (0%)
Green73 (28.6%)
Blue115 (45.1%)
Hue201.91°
Saturation (HSL)100%
Lightness22.55%
Dominant channelBlue
Hex per channelR 00 · G 49 · B 73

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Every value on this page was computed from “hex 004973” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.