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Recognised as Colour

#20458B

  • #20458B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#20458B is a blue with RGB values 32, 69, 139 and HSL 219°, 63%, 34%. 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 slateblue.

Colour values

#20458B#20458B
HEX#20458B
RGBrgb(32, 69, 139)
RGB (0–1)0.1255, 0.2706, 0.5451
RGB percentages12.5%, 27.1%, 54.5%
HSLhsl(219.3, 62.6%, 33.5%)
HSV / HSBhsv(219.3, 77%, 54.5%)
CMYK77%, 50.4%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,114,955
CSS custom property--colour: #20458B;

Brightness & contrast

Relative luminance0.06427WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.19:1
Contrast with white9.19:1WCAG normal text: AAA
Contrast with black2.29:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#DFBA74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1D4D8Eno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#00438Ano green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#005661no blue cones; rare, and affects men and women equally; ΔE 43.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.19:1WCAG large text: AAA
Contrast with black, large text2.29:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13Midnight blue · ΔE 24.6Steel blue · ΔE 29.8Rebecca purple · ΔE 30.2Slate blue · ΔE 31.2Royal blue · ΔE 31.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B6620
Analogous#207A8B, #31208B
Triadic#8B2045, #458B20
Split complementary#8B3120, #7A8B20
Tetradic#8B207A, #8B6620, #208B31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#91AEE6
Lighter +30%#6890DC
Lighter +20%#3E72D3
Lighter +10%#2A5AB4
Darker −10%#163062
Darker −20%#0D1C38
Darker −30%#03070F
Darker −40%#000000
More saturated +25%#0B3EA0
Less saturated −25%#354C76

Channel breakdown

R32
G69
B139
Red32 (12.5%)
Green69 (27.1%)
Blue139 (54.5%)
Hue219.25°
Saturation (HSL)62.57%
Lightness33.53%
Dominant channelBlue
Hex per channelR 20 · G 45 · B 8B

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Every value on this page was computed from “20458b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.