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Recognised as Colour

#4178CE

  • #4178CE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4178CE is a blue with RGB values 65, 120, 206 and HSL 217°, 59%, 53%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4178CE#4178CE
HEX#4178CE
RGBrgb(65, 120, 206)
RGB (0–1)0.2549, 0.4706, 0.8078
RGB percentages25.5%, 47.1%, 80.8%
HSLhsl(216.6, 59%, 53.1%)
HSV / HSBhsv(216.6, 68.4%, 80.8%)
CMYK68.4%, 41.7%, 0%, 19.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,290,766
CSS custom property--colour: #4178CE;

Brightness & contrast

Relative luminance0.19013WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.8:1
Contrast with white4.37:1WCAG normal text: Fail
Contrast with black4.8:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#BE8731

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5080D1no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#3973CCno green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#008C99no blue cones; rare, and affects men and women equally; ΔE 50 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.37:1WCAG large text: AA
Contrast with black, large text4.8:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.3Dodgerblue · ΔE 16.1Royal blue · ΔE 22.5Steel blue · ΔE 22.7Dark slateblue · ΔE 26.7Medium purple · ΔE 27.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CE9741
Analogous#41BECE, #5141CE
Triadic#CE4178, #78CE41
Split complementary#CE5141, #BECE41
Tetradic#CE41BE, #CE9741, #41CE51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E3EBF8
Lighter +30%#BBCEED
Lighter +20%#92B2E3
Lighter +10%#6A95D8
Darker −10%#2D60AF
Darker −20%#234A86
Darker −30%#18335E
Darker −40%#0E1D35
More saturated +25%#2371EC
Less saturated −25%#5F7FB0

Channel breakdown

R65
G120
B206
Red65 (25.5%)
Green120 (47.1%)
Blue206 (80.8%)
Hue216.6°
Saturation (HSL)59%
Lightness53.14%
Dominant channelBlue
Hex per channelR 41 · G 78 · B CE

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Every value on this page was computed from “4178ce” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.