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Recognised as Colour

#6451AE

  • #6451AE
  • Blue
  • Dark
  • Nearest: Dark slateblue

#6451AE is a blue with RGB values 100, 81, 174 and HSL 252°, 36%, 50%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#6451AE#6451AE
HEX#6451AE
RGBrgb(100, 81, 174)
RGB (0–1)0.3922, 0.3176, 0.6824
RGB percentages39.2%, 31.8%, 68.2%
HSLhsl(252.3, 36.5%, 50%)
HSV / HSBhsv(252.3, 53.4%, 68.2%)
CMYK42.5%, 53.4%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,574,510
CSS custom property--colour: #6451AE;

Brightness & contrast

Relative luminance0.1165WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.31:1
Contrast with white6.31:1WCAG normal text: AA
Contrast with black3.33:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#9BAE51

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2662B1no red cones; affects about 1% of men; ΔE 21.5 from the original
Deuteranopia#285EACno green cones; the most common form, about 1% of men; ΔE 20.6 from the original
Tritanopia#4F6577no blue cones; rare, and affects men and women equally; ΔE 48.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.31:1WCAG large text: AAA
Contrast with black, large text3.33:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 12.1Slate blue · ΔE 12.6Rebecca purple · ΔE 14.2Medium purple · ΔE 15.7Royal blue · ΔE 19.9Medium slateblue · ΔE 23.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9BAE51
Analogous#516DAE, #9351AE
Triadic#AE6451, #51AE64
Split complementary#AE9351, #6DAE51
Tetradic#AE516D, #9BAE51, #51AE93

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0DCEF
Lighter +30%#C1B9DF
Lighter +20%#A297CE
Lighter +10%#8374BE
Darker −10%#50418B
Darker −20%#3C3168
Darker −30%#282046
Darker −40%#141023
More saturated +25%#5131CE
Less saturated −25%#77718E

Channel breakdown

R100
G81
B174
Red100 (39.2%)
Green81 (31.8%)
Blue174 (68.2%)
Hue252.26°
Saturation (HSL)36.47%
Lightness50%
Dominant channelBlue
Hex per channelR 64 · G 51 · B AE

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Every value on this page was computed from “6451ae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.