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Colour

#0556CF

  • #0556CF
  • Blue
  • Dark
  • Nearest: Royal blue

#0556CF is a blue with RGB values 5, 86, 207 and HSL 216°, 95%, 42%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0556CF#0556CF
HEX#0556CF
RGBrgb(5, 86, 207)
RGB (0–1)0.0196, 0.3373, 0.8118
RGB percentages2%, 33.7%, 81.2%
HSLhsl(215.9, 95.3%, 41.6%)
HSV / HSBhsv(215.9, 97.6%, 81.2%)
CMYK97.6%, 58.5%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer349,903
CSS custom property--colour: #0556CF;

Brightness & contrast

Relative luminance0.11193WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.48:1
Contrast with white6.48:1WCAG normal text: AA
Contrast with black3.24:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#FAA930

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067D3no red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#0056CDno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#00758Ano blue cones; rare, and affects men and women equally; ΔE 67.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.48:1WCAG large text: AAA
Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Royal blue · ΔE 8.4Slate blue · ΔE 14.6Medium slateblue · ΔE 18.7Medium purple · ΔE 25.3Dodgerblue · ΔE 26.4Rebecca purple · ΔE 27
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.42, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CF7E05
Analogous#05BBCF, #1905CF
Triadic#CF0556, #56CF05
Split complementary#CF1905, #BBCF05
Tetradic#CF05BB, #CF7E05, #05CF19

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3C7FD
Lighter +30%#71A9FC
Lighter +20%#408BFA
Lighter +10%#0E6CF9
Darker −10%#04419D
Darker −20%#032D6B
Darker −30%#01183A
Darker −40%#000308
More saturated +25%#0055D4
Less saturated −25%#205BB4

Channel breakdown

R5
G86
B207
Red5 (2%)
Green86 (33.7%)
Blue207 (81.2%)
Hue215.94°
Saturation (HSL)95.28%
Lightness41.57%
Dominant channelBlue
Hex per channelR 05 · G 56 · B CF

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Every value on this page was computed from “0556cf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.