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Recognised as Colour

#2D374C

  • #2D374C
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2D374C is a blue with RGB values 45, 55, 76 and HSL 221°, 26%, 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

#2D374C#2D374C
HEX#2D374C
RGBrgb(45, 55, 76)
RGB (0–1)0.1765, 0.2157, 0.298
RGB percentages17.6%, 21.6%, 29.8%
HSLhsl(220.6, 25.6%, 23.7%)
HSV / HSBhsv(220.6, 40.8%, 29.8%)
CMYK40.8%, 27.6%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,963,276
CSS custom property--colour: #2D374C;

Brightness & contrast

Relative luminance0.03812WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.92:1
Contrast with white11.92:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#D2C8B3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#30384Dno red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#2D364Cno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#233B3Eno blue cones; rare, and affects men and women equally; ΔE 14 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.92:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.1Dim grey · ΔE 25.7Black · ΔE 27.1Slate grey · ΔE 30.3Light slate grey · ΔE 33.3Gray · ΔE 33.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C422D
Analogous#2D464C, #322D4C
Triadic#4C2D37, #374C2D
Split complementary#4C322D, #474C2D
Tetradic#4C2D47, #4C422D, #2D4C32

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8B9ABA
Lighter +30%#6B7EA7
Lighter +20%#53658C
Lighter +10%#404E6C
Darker −10%#1A202C
Darker −20%#07090C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E325B
Less saturated −25%#3C3C3D

Channel breakdown

R45
G55
B76
Red45 (17.6%)
Green55 (21.6%)
Blue76 (29.8%)
Hue220.65°
Saturation (HSL)25.62%
Lightness23.73%
Dominant channelBlue
Hex per channelR 2D · G 37 · B 4C

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Every value on this page was computed from “2d374c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.