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Recognised as Colour

#3A4865

  • #3A4865
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3A4865 is a blue with RGB values 58, 72, 101 and HSL 220°, 27%, 31%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3A4865#3A4865
HEX#3A4865
RGBrgb(58, 72, 101)
RGB (0–1)0.2275, 0.2824, 0.3961
RGB percentages22.7%, 28.2%, 39.6%
HSLhsl(220.5, 27%, 31.2%)
HSV / HSBhsv(220.5, 42.6%, 39.6%)
CMYK42.6%, 28.7%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,819,621
CSS custom property--colour: #3A4865;

Brightness & contrast

Relative luminance0.06474WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.15:1
Contrast with white9.15:1WCAG normal text: AAA
Contrast with black2.29:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#C5B79A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E4A66no red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#3A4664no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#2C4E52no blue cones; rare, and affects men and women equally; ΔE 18.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.15:1WCAG large text: AAA
Contrast with black, large text2.29:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20.9Dim grey · ΔE 23.5Slate grey · ΔE 24.2Steel blue · ΔE 26.6Light slate grey · ΔE 26.9Gray · ΔE 29.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#65573A
Analogous#3A5D65, #423A65
Triadic#653A48, #48653A
Split complementary#65423A, #5E653A
Tetradic#653A5D, #65573A, #3A6542

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2AFC9
Lighter +30%#8193B7
Lighter +20%#6177A4
Lighter +10%#4D5F85
Darker −10%#273145
Darker −20%#151A24
Darker −30%#020304
Darker −40%#000000
More saturated +25%#264179
Less saturated −25%#4E4F51

Channel breakdown

R58
G72
B101
Red58 (22.7%)
Green72 (28.2%)
Blue101 (39.6%)
Hue220.47°
Saturation (HSL)27.04%
Lightness31.18%
Dominant channelBlue
Hex per channelR 3A · G 48 · B 65

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Every value on this page was computed from “3a4865” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.