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Recognised as Colour

#3457BC

  • #3457BC
  • Blue
  • Dark
  • Nearest: Royal blue

#3457BC is a blue with RGB values 52, 87, 188 and HSL 225°, 57%, 47%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3457BC#3457BC
HEX#3457BC
RGBrgb(52, 87, 188)
RGB (0–1)0.2039, 0.3412, 0.7373
RGB percentages20.4%, 34.1%, 73.7%
HSLhsl(224.6, 56.7%, 47.1%)
HSV / HSBhsv(224.6, 72.3%, 73.7%)
CMYK72.3%, 53.7%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,430,332
CSS custom property--colour: #3457BC;

Brightness & contrast

Relative luminance0.11177WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.49:1
Contrast with white6.49:1WCAG normal text: AA
Contrast with black3.24:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#CBA843

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0864C0no red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#0058BAno green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#006F81no blue cones; rare, and affects men and women equally; ΔE 57.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.49:1WCAG large text: AAA
Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.1Slate blue · ΔE 14.6Dark slateblue · ΔE 17.7Medium purple · ΔE 21.8Rebecca purple · ΔE 23.6Medium slateblue · ΔE 23.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC9934
Analogous#349BBC, #5534BC
Triadic#BC3457, #57BC34
Split complementary#BC5534, #9BBC34
Tetradic#BC349B, #BC9934, #34BC55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD5F1
Lighter +30%#A3B4E6
Lighter +20%#7B94DB
Lighter +10%#5373D0
Darker −10%#294594
Darker −20%#1E326C
Darker −30%#132044
Darker −40%#080D1C
More saturated +25%#1648DA
Less saturated −25%#52669E

Channel breakdown

R52
G87
B188
Red52 (20.4%)
Green87 (34.1%)
Blue188 (73.7%)
Hue224.56°
Saturation (HSL)56.67%
Lightness47.06%
Dominant channelBlue
Hex per channelR 34 · G 57 · B BC

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Every value on this page was computed from “3457bc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.