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Recognised as Colour

#2F568B

  • #2F568B
  • Blue
  • Dark
  • Nearest: Steel blue

#2F568B is a blue with RGB values 47, 86, 139 and HSL 215°, 49%, 36%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#2F568B#2F568B
HEX#2F568B
RGBrgb(47, 86, 139)
RGB (0–1)0.1843, 0.3373, 0.5451
RGB percentages18.4%, 33.7%, 54.5%
HSLhsl(214.6, 49.5%, 36.5%)
HSV / HSBhsv(214.6, 66.2%, 54.5%)
CMYK66.2%, 38.1%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,102,347
CSS custom property--colour: #2F568B;

Brightness & contrast

Relative luminance0.09124WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.43:1
Contrast with white7.43:1WCAG normal text: AAA
Contrast with black2.82:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#D0A974

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F5A8Dno red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#32518Ano green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#00626Ano blue cones; rare, and affects men and women equally; ΔE 33.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.43:1WCAG large text: AAA
Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Steel blue · ΔE 18.3Dark slateblue · ΔE 24.1Slate grey · ΔE 29.1Light slate grey · ΔE 30.5Cornflower blue · ΔE 30.6Dark slate grey · ΔE 34.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 18.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B642F
Analogous#2F848B, #362F8B
Triadic#8B2F56, #568B2F
Split complementary#8B362F, #848B2F
Tetradic#8B2F84, #8B642F, #2F8B36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5BEE1
Lighter +30%#7FA3D4
Lighter +20%#5988C7
Lighter +10%#3C6EB1
Darker −10%#223E65
Darker −20%#15273F
Darker −30%#080F19
Darker −40%#000000
More saturated +25%#1852A2
Less saturated −25%#465A74

Channel breakdown

R47
G86
B139
Red47 (18.4%)
Green86 (33.7%)
Blue139 (54.5%)
Hue214.57°
Saturation (HSL)49.46%
Lightness36.47%
Dominant channelBlue
Hex per channelR 2F · G 56 · B 8B

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Every value on this page was computed from “2f568b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.