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Recognised as Colour

#4249AD

  • #4249AD
  • Blue
  • Dark
  • Nearest: Slate blue

#4249AD is a blue with RGB values 66, 73, 173 and HSL 236°, 45%, 47%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#4249AD#4249AD
HEX#4249AD
RGBrgb(66, 73, 173)
RGB (0–1)0.2588, 0.2863, 0.6784
RGB percentages25.9%, 28.6%, 67.8%
HSLhsl(236.1, 44.8%, 46.9%)
HSV / HSBhsv(236.1, 61.8%, 67.8%)
CMYK61.8%, 57.8%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,344,237
CSS custom property--colour: #4249AD;

Brightness & contrast

Relative luminance0.0894WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.53:1
Contrast with white7.53:1WCAG normal text: AAA
Contrast with black2.79:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#BDB652

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059B0no red cones; affects about 1% of men; ΔE 16.4 from the original
Deuteranopia#0050ABno green cones; the most common form, about 1% of men; ΔE 12.1 from the original
Tritanopia#006174no blue cones; rare, and affects men and women equally; ΔE 58.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.53:1WCAG large text: AAA
Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Slate blue · ΔE 12.6Dark slateblue · ΔE 13.6Royal blue · ΔE 16.2Rebecca purple · ΔE 16.5Midnight blue · ΔE 20.9Medium purple · ΔE 21.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 12.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ADA642
Analogous#427FAD, #7042AD
Triadic#AD4249, #49AD42
Split complementary#AD7042, #7FAD42
Tetradic#AD427F, #ADA642, #42AD71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD0EC
Lighter +30%#AAADDE
Lighter +20%#858AD0
Lighter +10%#6066C2
Darker −10%#343988
Darker −20%#262A63
Darker −30%#181A3E
Darker −40%#0A0B19
More saturated +25%#242FCB
Less saturated −25%#60638F

Channel breakdown

R66
G73
B173
Red66 (25.9%)
Green73 (28.6%)
Blue173 (67.8%)
Hue236.07°
Saturation (HSL)44.77%
Lightness46.86%
Dominant channelBlue
Hex per channelR 42 · G 49 · B AD

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Every value on this page was computed from “4249ad” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.