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Recognised as Colour

#2D374F

  • #2D374F
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2D374F is a blue with RGB values 45, 55, 79 and HSL 222°, 27%, 24%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2D374F#2D374F
HEX#2D374F
RGBrgb(45, 55, 79)
RGB (0–1)0.1765, 0.2157, 0.3098
RGB percentages17.6%, 21.6%, 31%
HSLhsl(222.4, 27.4%, 24.3%)
HSV / HSBhsv(222.4, 43%, 31%)
CMYK43%, 30.4%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,963,279
CSS custom property--colour: #2D374F;

Brightness & contrast

Relative luminance0.03855WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.86:1
Contrast with white11.86:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#D2C8B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F3950no red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#2C364Eno green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#223C3Fno blue cones; rare, and affects men and women equally; ΔE 16.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.86:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20.8Dim grey · ΔE 26.7Black · ΔE 28.3Slate grey · ΔE 30.6Light slate grey · ΔE 33.5Steel blue · ΔE 34.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F452D
Analogous#2D484F, #342D4F
Triadic#4F2D37, #374F2D
Split complementary#4F342D, #484F2D
Tetradic#4F2D48, #4F452D, #2D4F34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8B9ABD
Lighter +30%#6B7DAA
Lighter +20%#526490
Lighter +10%#404E6F
Darker −10%#1A202F
Darker −20%#080A0E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E315F
Less saturated −25%#3D3D40

Channel breakdown

R45
G55
B79
Red45 (17.6%)
Green55 (21.6%)
Blue79 (31%)
Hue222.35°
Saturation (HSL)27.42%
Lightness24.31%
Dominant channelBlue
Hex per channelR 2D · G 37 · B 4F

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Every value on this page was computed from “2d374f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.