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Recognised as Colour

#0580CF

  • #0580CF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#0580CF is a blue with RGB values 5, 128, 207 and HSL 203°, 95%, 42%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#0580CF#0580CF
HEX#0580CF
RGBrgb(5, 128, 207)
RGB (0–1)0.0196, 0.502, 0.8118
RGB percentages2%, 50.2%, 81.2%
HSLhsl(203.5, 95.3%, 41.6%)
HSV / HSBhsv(203.5, 97.6%, 81.2%)
CMYK97.6%, 38.2%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer360,655
CSS custom property--colour: #0580CF;

Brightness & contrast

Relative luminance0.19976WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5:1
Contrast with white4.2:1WCAG normal text: Fail
Contrast with black5:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#FA7F30

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5984D2no red cones; affects about 1% of men; ΔE 9.8 from the original
Deuteranopia#3B74CDno green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#00939Dno blue cones; rare, and affects men and women equally; ΔE 44.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.2:1WCAG large text: AA
Contrast with black, large text5:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.6Steel blue · ΔE 17.1Dodgerblue · ΔE 19.1Deep skyblue · ΔE 28.1Royal blue · ΔE 31Dark slateblue · ΔE 33.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.58, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CF5405
Analogous#05CFB9, #051BCF
Triadic#CF0580, #80CF05
Split complementary#CF051B, #CFB905
Tetradic#B905CF, #CF5405, #1BCF05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3DAFD
Lighter +30%#71C6FC
Lighter +20%#40B1FA
Lighter +10%#0E9DF9
Darker −10%#04619D
Darker −20%#03426B
Darker −30%#01243A
Darker −40%#000508
More saturated +25%#0081D4
Less saturated −25%#207AB4

Channel breakdown

R5
G128
B207
Red5 (2%)
Green128 (50.2%)
Blue207 (81.2%)
Hue203.47°
Saturation (HSL)95.28%
Lightness41.57%
Dominant channelBlue
Hex per channelR 05 · G 80 · B CF

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Every value on this page was computed from “0580cf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.