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Recognised as Colour

#657FFE

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

#657FFE is a blue with RGB values 101, 127, 254 and HSL 230°, 99%, 70%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#657FFE#657FFE
HEX#657FFE
RGBrgb(101, 127, 254)
RGB (0–1)0.3961, 0.498, 0.9961
RGB percentages39.6%, 49.8%, 99.6%
HSLhsl(229.8, 98.7%, 69.6%)
HSV / HSBhsv(229.8, 60.2%, 99.6%)
CMYK60.2%, 50%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,902
CSS custom property--colour: #657FFE;

Brightness & contrast

Relative luminance0.25101WCAG 2.x, 0 is black and 1 is white
Perceived brightness141 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.02:1
Contrast with white3.49:1WCAG normal text: Fail
Contrast with black6.02:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#9A8001

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3890FFno red cones; affects about 1% of men; ΔE 16.9 from the original
Deuteranopia#0E83FBno green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#009CB3no blue cones; rare, and affects men and women equally; ΔE 70.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.49:1WCAG large text: AA
Contrast with black, large text6.02:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.6Medium slateblue · ΔE 13.9Slate blue · ΔE 16.5Medium purple · ΔE 18.5Dodgerblue · ΔE 18.6Cornflower blue · ΔE 25.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.59, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEE465
Analogous#65CCFE, #9765FE
Triadic#FE657F, #7FFE65
Split complementary#FE9865, #CBFE65
Tetradic#FE65CC, #FEE465, #65FE98

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFDFF
Lighter +20%#CAD3FF
Lighter +10%#98A9FE
Darker −10%#3255FE
Darker −20%#022CFB
Darker −30%#0123C9
Darker −40%#011A96
More saturated +25%#647EFF
Less saturated −25%#788CEB

Channel breakdown

R101
G127
B254
Red101 (39.6%)
Green127 (49.8%)
Blue254 (99.6%)
Hue229.8°
Saturation (HSL)98.71%
Lightness69.61%
Dominant channelBlue
Hex per channelR 65 · G 7F · B FE

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