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Recognised as Colour

#657EE4

  • #657EE4
  • Blue
  • Dark
  • Nearest: Cornflower blue

#657EE4 is a blue with RGB values 101, 126, 228 and HSL 228°, 70%, 65%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#657EE4#657EE4
HEX#657EE4
RGBrgb(101, 126, 228)
RGB (0–1)0.3961, 0.4941, 0.8941
RGB percentages39.6%, 49.4%, 89.4%
HSLhsl(228.2, 70.2%, 64.5%)
HSV / HSBhsv(228.2, 55.7%, 89.4%)
CMYK55.7%, 44.7%, 0%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,620
CSS custom property--colour: #657EE4;

Brightness & contrast

Relative luminance0.2329WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.66:1
Contrast with white3.71:1WCAG normal text: Fail
Contrast with black5.66:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#9A811B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#508AE8no red cones; affects about 1% of men; ΔE 10.2 from the original
Deuteranopia#407FE2no green cones; the most common form, about 1% of men; ΔE 7.9 from the original
Tritanopia#1795A6no blue cones; rare, and affects men and women equally; ΔE 58.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.71:1WCAG large text: AA
Contrast with black, large text5.66:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.9Dodgerblue · ΔE 14.1Royal blue · ΔE 14.2Medium purple · ΔE 17.1Slate blue · ΔE 18.9Medium slateblue · ΔE 23.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E4CB65
Analogous#65BEE4, #8B65E4
Triadic#E4657E, #7EE465
Split complementary#E48B65, #BEE465
Tetradic#E465BE, #E4CB65, #65E48B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E7EBFB
Lighter +20%#BCC7F3
Lighter +10%#90A2EC
Darker −10%#3A5ADC
Darker −20%#2241C1
Darker −30%#1A3396
Darker −40%#13246A
More saturated +25%#4E70FB
Less saturated −25%#7C8CCD

Channel breakdown

R101
G126
B228
Red101 (39.6%)
Green126 (49.4%)
Blue228 (89.4%)
Hue228.19°
Saturation (HSL)70.17%
Lightness64.51%
Dominant channelBlue
Hex per channelR 65 · G 7E · B E4

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Every value on this page was computed from “657ee4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.