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Recognised as Colour

#575DB2

  • #575DB2
  • Blue
  • Dark
  • Nearest: Dark slateblue

#575DB2 is a blue with RGB values 87, 93, 178 and HSL 236°, 37%, 52%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#575DB2#575DB2
HEX#575DB2
RGBrgb(87, 93, 178)
RGB (0–1)0.3412, 0.3647, 0.698
RGB percentages34.1%, 36.5%, 69.8%
HSLhsl(236, 37.1%, 52%)
HSV / HSBhsv(236, 51.1%, 69.8%)
CMYK51.1%, 47.8%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,725,618
CSS custom property--colour: #575DB2;

Brightness & contrast

Relative luminance0.13069WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.81:1
Contrast with white5.81:1WCAG normal text: AA
Contrast with black3.61:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#A8A24D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3769B5no red cones; affects about 1% of men; ΔE 13 from the original
Deuteranopia#2E62B0no green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#326F7Fno blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.81:1WCAG large text: AAA
Contrast with black, large text3.61:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 13.4Slate blue · ΔE 18.7Medium purple · ΔE 19.8Royal blue · ΔE 20.3Cornflower blue · ΔE 22.9Rebecca purple · ΔE 23.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B2AC57
Analogous#578AB2, #7F57B2
Triadic#B2575D, #5DB257
Split complementary#B27F57, #8AB257
Tetradic#B2578A, #B2AC57, #57B27F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E3E4F2
Lighter +30%#C0C2E2
Lighter +20%#9DA0D2
Lighter +10%#7A7FC2
Darker −10%#434893
Darker −20%#333770
Darker −30%#23264D
Darker −40%#13152A
More saturated +25%#3842D1
Less saturated −25%#767893

Channel breakdown

R87
G93
B178
Red87 (34.1%)
Green93 (36.5%)
Blue178 (69.8%)
Hue236.04°
Saturation (HSL)37.14%
Lightness51.96%
Dominant channelBlue
Hex per channelR 57 · G 5D · B B2

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Every value on this page was computed from “575db2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.