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Recognised as Colour

#5451BD

  • #5451BD
  • Blue
  • Dark
  • Nearest: Slate blue

#5451BD is a blue with RGB values 84, 81, 189 and HSL 242°, 45%, 53%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#5451BD#5451BD
HEX#5451BD
RGBrgb(84, 81, 189)
RGB (0–1)0.3294, 0.3176, 0.7412
RGB percentages32.9%, 31.8%, 74.1%
HSLhsl(241.7, 45%, 52.9%)
HSV / HSBhsv(241.7, 57.1%, 74.1%)
CMYK55.6%, 57.1%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,525,949
CSS custom property--colour: #5451BD;

Brightness & contrast

Relative luminance0.11444WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.39:1
Contrast with white6.39:1WCAG normal text: AA
Contrast with black3.29:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#ABAE42

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063C1no red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#005BBBno green cones; the most common form, about 1% of men; ΔE 16.5 from the original
Tritanopia#1F6A7Fno blue cones; rare, and affects men and women equally; ΔE 60.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.39:1WCAG large text: AAA
Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Slate blue · ΔE 6.5Royal blue · ΔE 12.8Rebecca purple · ΔE 16.2Medium purple · ΔE 16.8Medium slateblue · ΔE 17.2Dark slateblue · ΔE 18.4
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 6.49, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BABD51
Analogous#5184BD, #8A51BD
Triadic#BD5451, #51BD54
Split complementary#BD8A51, #84BD51
Tetradic#BD5184, #BABD51, #51BD8A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5E5F5
Lighter +30%#C1C0E7
Lighter +20%#9D9BD9
Lighter +10%#7876CB
Darker −10%#3F3C9F
Darker −20%#302E7A
Darker −30%#222055
Darker −40%#131230
More saturated +25%#3833DB
Less saturated −25%#706F9F

Channel breakdown

R84
G81
B189
Red84 (32.9%)
Green81 (31.8%)
Blue189 (74.1%)
Hue241.67°
Saturation (HSL)45%
Lightness52.94%
Dominant channelBlue
Hex per channelR 54 · G 51 · B BD

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Every value on this page was computed from “5451bd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.