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Colour

#657BEE

  • #657BEE
  • Blue
  • Dark
  • Nearest: Royal blue

#657BEE is a blue with RGB values 101, 123, 238 and HSL 230°, 80%, 66%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#657BEE#657BEE
HEX#657BEE
RGBrgb(101, 123, 238)
RGB (0–1)0.3961, 0.4824, 0.9333
RGB percentages39.6%, 48.2%, 93.3%
HSLhsl(230.4, 80.1%, 66.5%)
HSV / HSBhsv(230.4, 57.6%, 93.3%)
CMYK57.6%, 48.3%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,650,862
CSS custom property--colour: #657BEE;

Brightness & contrast

Relative luminance0.23106WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.62:1
Contrast with white3.74:1WCAG normal text: Fail
Contrast with black5.62:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#9A8411

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#418AF2no red cones; affects about 1% of men; ΔE 13.8 from the original
Deuteranopia#2A7EECno green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#0095A9no blue cones; rare, and affects men and women equally; ΔE 65.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.74:1WCAG large text: AA
Contrast with black, large text5.62:1WCAG large text: AAA

Named colours

Royal blue · ΔE 8.7Slate blue · ΔE 14.8Medium purple · ΔE 15.5Dodgerblue · ΔE 16.2Medium slateblue · ΔE 16.7Cornflower blue · ΔE 20.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.74, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EED865
Analogous#65C0EE, #9365EE
Triadic#EE657B, #7BEE65
Split complementary#EE9365, #C0EE65
Tetradic#EE65C0, #EED865, #65EE93

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EFF1FD
Lighter +20%#C1CAF8
Lighter +10%#93A2F3
Darker −10%#3754E9
Darker −20%#1836D5
Darker −30%#122AA8
Darker −40%#0D1F7A
More saturated +25%#546FFF
Less saturated −25%#7A8AD9

Channel breakdown

R101
G123
B238
Red101 (39.6%)
Green123 (48.2%)
Blue238 (93.3%)
Hue230.36°
Saturation (HSL)80.12%
Lightness66.47%
Dominant channelBlue
Hex per channelR 65 · G 7B · B EE

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