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Recognised as Colour

#2F456D

  • #2F456D
  • Blue
  • Dark
  • Nearest: Steel blue

#2F456D is a blue with RGB values 47, 69, 109 and HSL 219°, 40%, 31%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#2F456D#2F456D
HEX#2F456D
RGBrgb(47, 69, 109)
RGB (0–1)0.1843, 0.2706, 0.4275
RGB percentages18.4%, 27.1%, 42.7%
HSLhsl(218.7, 39.7%, 30.6%)
HSV / HSBhsv(218.7, 56.9%, 42.7%)
CMYK56.9%, 36.7%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,097,965
CSS custom property--colour: #2F456D;

Brightness & contrast

Relative luminance0.05965WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.58:1
Contrast with white9.58:1WCAG normal text: AAA
Contrast with black2.19:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#D0BA92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#35486Fno red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#2E426Cno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#0C4E54no blue cones; rare, and affects men and women equally; ΔE 27.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.58:1WCAG large text: AAA
Contrast with black, large text2.19:1WCAG large text: Fail

Named colours

Steel blue · ΔE 25.5Dark slateblue · ΔE 27.1Dark slate grey · ΔE 27.4Slate grey · ΔE 28.8Dim grey · ΔE 30.2Light slate grey · ΔE 31.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 25.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D572F
Analogous#2F646D, #382F6D
Triadic#6D2F45, #456D2F
Split complementary#6D382F, #646D2F
Tetradic#6D2F64, #6D572F, #2F6D38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#96ABD2
Lighter +30%#738FC2
Lighter +20%#4F72B3
Lighter +10%#3E5C91
Darker −10%#202E49
Darker −20%#101826
Darker −30%#010102
Darker −40%#000000
More saturated +25%#1C3F81
Less saturated −25%#434B5A

Channel breakdown

R47
G69
B109
Red47 (18.4%)
Green69 (27.1%)
Blue109 (42.7%)
Hue218.71°
Saturation (HSL)39.74%
Lightness30.59%
Dominant channelBlue
Hex per channelR 2F · G 45 · B 6D

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Every value on this page was computed from “2f456d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.