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Colour

#375EE3

  • #375EE3
  • Blue
  • Dark
  • Nearest: Royal blue

#375EE3 is a blue with RGB values 55, 94, 227 and HSL 226°, 75%, 55%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#375EE3#375EE3
HEX#375EE3
RGBrgb(55, 94, 227)
RGB (0–1)0.2157, 0.3686, 0.8902
RGB percentages21.6%, 36.9%, 89%
HSLhsl(226.4, 75.4%, 55.3%)
HSV / HSBhsv(226.4, 75.8%, 89%)
CMYK75.8%, 58.6%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,628,771
CSS custom property--colour: #375EE3;

Brightness & contrast

Relative luminance0.14364WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.42:1
Contrast with white5.42:1WCAG normal text: AA
Contrast with black3.87:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#C8A11C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0072E7no red cones; affects about 1% of men; ΔE 16 from the original
Deuteranopia#0062E0no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#008097no blue cones; rare, and affects men and women equally; ΔE 74 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.42:1WCAG large text: AAA
Contrast with black, large text3.87:1WCAG large text: AA

Named colours

Royal blue · ΔE 9.5Medium slateblue · ΔE 12.7Slate blue · ΔE 14.1Medium purple · ΔE 24Dodgerblue · ΔE 28.2Rebecca purple · ΔE 28.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.46, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E3BC37
Analogous#37B4E3, #6637E3
Triadic#E3375E, #5EE337
Split complementary#E36637, #B4E337
Tetradic#E337B4, #E3BC37, #37E366

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAEEFC
Lighter +30%#BDCAF6
Lighter +20%#90A6F0
Lighter +10%#6482E9
Darker −10%#1C44CB
Darker −20%#16359E
Darker −30%#102671
Darker −40%#0A1744
More saturated +25%#1B4FFF
Less saturated −25%#546EC7

Channel breakdown

R55
G94
B227
Red55 (21.6%)
Green94 (36.9%)
Blue227 (89%)
Hue226.4°
Saturation (HSL)75.44%
Lightness55.29%
Dominant channelBlue
Hex per channelR 37 · G 5E · B E3

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Every value on this page was computed from “375ee3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.