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Recognised as Colour

#355EB1

  • #355EB1
  • Blue
  • Dark
  • Nearest: Dark slateblue

#355EB1 is a blue with RGB values 53, 94, 177 and HSL 220°, 54%, 45%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#355EB1#355EB1
HEX#355EB1
RGBrgb(53, 94, 177)
RGB (0–1)0.2078, 0.3686, 0.6941
RGB percentages20.8%, 36.9%, 69.4%
HSLhsl(220.2, 53.9%, 45.1%)
HSV / HSBhsv(220.2, 70.1%, 69.4%)
CMYK70.1%, 46.9%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,497,649
CSS custom property--colour: #355EB1;

Brightness & contrast

Relative luminance0.11937WCAG 2.x, 0 is black and 1 is white
Perceived brightness98 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.2:1
Contrast with white6.2:1WCAG normal text: AA
Contrast with black3.39:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#CAA14E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3367B4no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#185CAFno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#00717Fno blue cones; rare, and affects men and women equally; ΔE 48.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.2:1WCAG large text: AAA
Contrast with black, large text3.39:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17Cornflower blue · ΔE 21.4Royal blue · ΔE 21.8Dodgerblue · ΔE 23.9Slate blue · ΔE 24.2Medium purple · ΔE 26.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B18835
Analogous#359CB1, #4A35B1
Triadic#B1355E, #5EB135
Split complementary#B14A35, #9CB135
Tetradic#B1359C, #B18835, #35B14A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C5D2ED
Lighter +30%#9DB4E2
Lighter +20%#7696D6
Lighter +10%#4F78CA
Darker −10%#29498A
Darker −20%#1D3463
Darker −30%#121F3B
Darker −40%#060B14
More saturated +25%#1854CE
Less saturated −25%#526894

Channel breakdown

R53
G94
B177
Red53 (20.8%)
Green94 (36.9%)
Blue177 (69.4%)
Hue220.16°
Saturation (HSL)53.91%
Lightness45.1%
Dominant channelBlue
Hex per channelR 35 · G 5E · B B1

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Every value on this page was computed from “355eb1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.