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Recognised as Colour

#00566C

  • #00566C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#00566C is a cyan with RGB values 0, 86, 108 and HSL 192°, 100%, 21%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00566C#00566C
HEX#00566C
RGBrgb(0, 86, 108)
RGB (0–1)0, 0.3373, 0.4235
RGB percentages0%, 33.7%, 42.4%
HSLhsl(192.2, 100%, 21.2%)
HSV / HSBhsv(192.2, 100%, 42.4%)
CMYK100%, 20.4%, 0%, 57.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer22,124
CSS custom property--colour: #00566C;

Brightness & contrast

Relative luminance0.07738WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.24:1
Contrast with white8.24:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#FFA993

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#49546Dno red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#3C4B6Cno green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#005D5Dno blue cones; rare, and affects men and women equally; ΔE 15.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.24:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.4Teal · ΔE 23.7Slate grey · ΔE 24Steel blue · ΔE 25.1Dim grey · ΔE 25.7Light slate grey · ΔE 26.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6C1600
Analogous#006C4C, #00206C
Triadic#6C0056, #566C00
Split complementary#6C0020, #6C4C00
Tetradic#4C006C, #6C1600, #206C00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#39D7FF
Lighter +30%#06CCFF
Lighter +20%#00A7D2
Lighter +10%#007F9F
Darker −10%#002D39
Darker −20%#000506
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00566C
Less saturated −25%#0E4E5F

Channel breakdown

R0
G86
B108
Red0 (0%)
Green86 (33.7%)
Blue108 (42.4%)
Hue192.22°
Saturation (HSL)100%
Lightness21.18%
Dominant channelBlue
Hex per channelR 00 · G 56 · B 6C

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Every value on this page was computed from “00566c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.