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Recognised as Colour

#4B6783

  • #4B6783
  • Blue
  • Dark
  • Nearest: Slate grey

#4B6783 is a blue with RGB values 75, 103, 131 and HSL 210°, 27%, 40%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#4B6783#4B6783
HEX#4B6783
RGBrgb(75, 103, 131)
RGB (0–1)0.2941, 0.4039, 0.5137
RGB percentages29.4%, 40.4%, 51.4%
HSLhsl(210, 27.2%, 40.4%)
HSV / HSBhsv(210, 42.7%, 51.4%)
CMYK42.7%, 21.4%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,941,699
CSS custom property--colour: #4B6783;

Brightness & contrast

Relative luminance0.12835WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.89:1
Contrast with white5.89:1WCAG normal text: AA
Contrast with black3.57:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#B4987C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5C6884no red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#556282no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#366D70no 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 text5.89:1WCAG large text: AAA
Contrast with black, large text3.57:1WCAG large text: AA

Named colours

Slate grey · ΔE 13.2Light slate grey · ΔE 15.4Steel blue · ΔE 16.8Dim grey · ΔE 19Dark slate grey · ΔE 21Gray · ΔE 21.9
Nearest named CSS colourSlate grey (#708090)ΔE 13.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#83674B
Analogous#4B8383, #4B4B83
Triadic#834B67, #67834B
Split complementary#834B4B, #83834B
Tetradic#834B83, #83674B, #4B834B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFCDDB
Lighter +30%#9FB3C8
Lighter +20%#7F9AB5
Lighter +10%#5E81A3
Darker −10%#384E63
Darker −20%#263442
Darker −30%#131A22
Darker −40%#010101
More saturated +25%#31679D
Less saturated −25%#656769

Channel breakdown

R75
G103
B131
Red75 (29.4%)
Green103 (40.4%)
Blue131 (51.4%)
Hue210°
Saturation (HSL)27.18%
Lightness40.39%
Dominant channelBlue
Hex per channelR 4B · G 67 · B 83

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Every value on this page was computed from “4b6783” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.