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Recognised as Colour

#005583

  • #005583
  • Blue
  • Dark
  • Nearest: Steel blue

#005583 is a blue with RGB values 0, 85, 131 and HSL 201°, 100%, 26%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#005583#005583
HEX#005583
RGBrgb(0, 85, 131)
RGB (0–1)0, 0.3333, 0.5137
RGB percentages0%, 33.3%, 51.4%
HSLhsl(201.1, 100%, 25.7%)
HSV / HSBhsv(201.1, 100%, 51.4%)
CMYK100%, 35.1%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer21,891
CSS custom property--colour: #005583;

Brightness & contrast

Relative luminance0.08136WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.99:1
Contrast with white7.99:1WCAG normal text: AAA
Contrast with black2.63:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#FFAA7C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F5685no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#2D4C82no green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#006066no blue cones; rare, and affects men and women equally; ΔE 28 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.99:1WCAG large text: AAA
Contrast with black, large text2.63:1WCAG large text: Fail

Named colours

Steel blue · ΔE 18.2Slate grey · ΔE 28.3Dark slate grey · ΔE 29.4Light slate grey · ΔE 30Dark slateblue · ΔE 31.6Dim grey · ΔE 33.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 18.21, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#832E00
Analogous#00836F, #001483
Triadic#830055, #558300
Split complementary#830014, #836F00
Tetradic#6F0083, #832E00, #148300

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#50C2FF
Lighter +30%#1DB0FF
Lighter +20%#0097E9
Lighter +10%#0076B6
Darker −10%#003450
Darker −20%#00131D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#005583
Less saturated −25%#105073

Channel breakdown

R0
G85
B131
Red0 (0%)
Green85 (33.3%)
Blue131 (51.4%)
Hue201.07°
Saturation (HSL)100%
Lightness25.69%
Dominant channelBlue
Hex per channelR 00 · G 55 · B 83

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Every value on this page was computed from “hex 005583” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.