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Recognised as Colour

#2A4F69

  • #2A4F69
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2A4F69 is a blue with RGB values 42, 79, 105 and HSL 205°, 43%, 29%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2A4F69#2A4F69
HEX#2A4F69
RGBrgb(42, 79, 105)
RGB (0–1)0.1647, 0.3098, 0.4118
RGB percentages16.5%, 31%, 41.2%
HSLhsl(204.8, 42.9%, 28.8%)
HSV / HSBhsv(204.8, 60%, 41.2%)
CMYK60%, 24.8%, 0%, 58.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,772,841
CSS custom property--colour: #2A4F69;

Brightness & contrast

Relative luminance0.07104WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.67:1
Contrast with white8.67:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#D5B096

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#434F6Ano red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#3B4969no green cones; the most common form, about 1% of men; ΔE 8.6 from the original
Tritanopia#005558no blue cones; rare, and affects men and women equally; ΔE 19.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.67:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.9Slate grey · ΔE 22.6Dim grey · ΔE 23.2Steel blue · ΔE 24.3Light slate grey · ΔE 25.3Gray · ΔE 29.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.88, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#69442A
Analogous#2A6964, #2A2F69
Triadic#692A4F, #4F692A
Split complementary#692A2F, #69632A
Tetradic#642A69, #69442A, #30692A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8DB5D2
Lighter +30%#699EC3
Lighter +20%#4786B2
Lighter +10%#396A8D
Darker −10%#1B3445
Darker −20%#0D1820
Darker −30%#000000
Darker −40%#000000
More saturated +25%#18527B
Less saturated −25%#3C4C57

Channel breakdown

R42
G79
B105
Red42 (16.5%)
Green79 (31%)
Blue105 (41.2%)
Hue204.76°
Saturation (HSL)42.86%
Lightness28.82%
Dominant channelBlue
Hex per channelR 2A · G 4F · B 69

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Every value on this page was computed from “2a4f69” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.