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Recognised as Colour

#4252B4

  • #4252B4
  • Blue
  • Dark
  • Nearest: Slate blue

#4252B4 is a blue with RGB values 66, 82, 180 and HSL 232°, 46%, 48%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#4252B4#4252B4
HEX#4252B4
RGBrgb(66, 82, 180)
RGB (0–1)0.2588, 0.3216, 0.7059
RGB percentages25.9%, 32.2%, 70.6%
HSLhsl(231.6, 46.3%, 48.2%)
HSV / HSBhsv(231.6, 63.3%, 70.6%)
CMYK63.3%, 54.4%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,346,548
CSS custom property--colour: #4252B4;

Brightness & contrast

Relative luminance0.10488WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.78:1
Contrast with white6.78:1WCAG normal text: AA
Contrast with black3.1:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#BDAD4B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C60B7no red cones; affects about 1% of men; ΔE 14.2 from the original
Deuteranopia#0056B2no green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#00697Bno blue cones; rare, and affects men and women equally; ΔE 57.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.78:1WCAG large text: AAA
Contrast with black, large text3.1:1WCAG large text: AA

Named colours

Slate blue · ΔE 13.3Dark slateblue · ΔE 14.4Royal blue · ΔE 14.5Rebecca purple · ΔE 20Medium purple · ΔE 20.4Medium slateblue · ΔE 23.8
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 13.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B4A442
Analogous#428BB4, #6B42B4
Triadic#B44252, #52B442
Split complementary#B46B42, #8BB442
Tetradic#B4428B, #B4A442, #42B46B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3D7EF
Lighter +30%#AEB5E1
Lighter +20%#8893D4
Lighter +10%#6371C6
Darker −10%#34418F
Darker −20%#273069
Darker −30%#191F44
Darker −40%#0B0E1F
More saturated +25%#233CD3
Less saturated −25%#616895

Channel breakdown

R66
G82
B180
Red66 (25.9%)
Green82 (32.2%)
Blue180 (70.6%)
Hue231.58°
Saturation (HSL)46.34%
Lightness48.24%
Dominant channelBlue
Hex per channelR 42 · G 52 · B B4

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Every value on this page was computed from “4252b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.