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Recognised as Colour

#40586D

  • #40586D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#40586D is a blue with RGB values 64, 88, 109 and HSL 208°, 26%, 34%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#40586D#40586D
HEX#40586D
RGBrgb(64, 88, 109)
RGB (0–1)0.251, 0.3451, 0.4275
RGB percentages25.1%, 34.5%, 42.7%
HSLhsl(208, 26%, 33.9%)
HSV / HSBhsv(208, 41.3%, 42.7%)
CMYK41.3%, 19.3%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,216,941
CSS custom property--colour: #40586D;

Brightness & contrast

Relative luminance0.09174WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.41:1
Contrast with white7.41:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#BFA792

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F586Eno red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#4A536Dno green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#305D5Fno blue cones; rare, and affects men and women equally; ΔE 14.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.41:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15Slate grey · ΔE 17.1Dim grey · ΔE 17.2Light slate grey · ΔE 20Gray · ΔE 23Steel blue · ΔE 23.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D5540
Analogous#406D6C, #40426D
Triadic#6D4058, #586D40
Split complementary#6D4042, #6D6B40
Tetradic#6C406D, #6D5540, #426D40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABBECE
Lighter +30%#8BA5BB
Lighter +20%#6B8CA8
Lighter +10%#53728D
Darker −10%#2D3E4D
Darker −20%#1A242D
Darker −30%#070A0D
Darker −40%#000000
More saturated +25%#2A5983
Less saturated −25%#565757

Channel breakdown

R64
G88
B109
Red64 (25.1%)
Green88 (34.5%)
Blue109 (42.7%)
Hue208°
Saturation (HSL)26.01%
Lightness33.92%
Dominant channelBlue
Hex per channelR 40 · G 58 · B 6D

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Every value on this page was computed from “40586d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.