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Recognised as Colour

#355CFF

  • #355CFF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#355CFF is a blue with RGB values 53, 92, 255 and HSL 228°, 100%, 60%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#355CFF#355CFF
HEX#355CFF
RGBrgb(53, 92, 255)
RGB (0–1)0.2078, 0.3608, 1
RGB percentages20.8%, 36.1%, 100%
HSLhsl(228.4, 100%, 60.4%)
HSV / HSBhsv(228.4, 79.2%, 100%)
CMYK79.2%, 63.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,497,215
CSS custom property--colour: #355CFF;

Brightness & contrast

Relative luminance0.15631WCAG 2.x, 0 is black and 1 is white
Perceived brightness115 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.09:1
Contrast with white5.09:1WCAG normal text: AA
Contrast with black4.13:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#CAA300

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0078FFno red cones; affects about 1% of men; ΔE 23.1 from the original
Deuteranopia#0065FCno green cones; the most common form, about 1% of men; ΔE 9.7 from the original
Tritanopia#0088A5no blue cones; rare, and affects men and women equally; ΔE 88.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.09:1WCAG large text: AAA
Contrast with black, large text4.13:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.9Royal blue · ΔE 25.9Slate blue · ΔE 27.7Blue violet · ΔE 28.1Dark orchid · ΔE 32.4Medium blue · ΔE 32.6
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFD835
Analogous#35C1FF, #7335FF
Triadic#FF355C, #5CFF35
Split complementary#FF7335, #C1FF35
Tetradic#FF35C1, #FFD835, #35FF73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#CED7FF
Lighter +20%#9BAEFF
Lighter +10%#6885FF
Darker −10%#0233FF
Darker −20%#0028CE
Darker −30%#001E9B
Darker −40%#001468
More saturated +25%#355CFF
Less saturated −25%#4E6BE6

Channel breakdown

R53
G92
B255
Red53 (20.8%)
Green92 (36.1%)
Blue255 (100%)
Hue228.42°
Saturation (HSL)100%
Lightness60.39%
Dominant channelBlue
Hex per channelR 35 · G 5C · B FF

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Every value on this page was computed from “355cff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.