Recognised as Colour

#657FDF

#657FDF
Blue
Dark
Nearest: Cornflower blue

#657FDF is a blue with RGB values 101, 127, 223 and HSL 227°, 66%, 64%. 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

#657FDF#657FDF

HEX#657FDF

RGBrgb(101, 127, 223)

RGB (0–1)0.3961, 0.498, 0.8745

RGB percentages39.6%, 49.8%, 87.5%

HSLhsl(227.2, 65.6%, 63.5%)

HSV / HSBhsv(227.2, 54.7%, 87.5%)

CMYK54.7%, 43%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,651,871

CSS custom property--colour: #657FDF;

Brightness & contrast

Relative luminance0.23273WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.65:1

Contrast with white3.71:1WCAG normal text: Fail

Contrast with black5.65:1WCAG normal text: AA

Greyscale equivalent#808080

Inverted#9A8020

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#568AE3no red cones; affects about 1% of men; ΔE 8.7 from the original

Deuteranopia#4780DDno green cones; the most common form, about 1% of men; ΔE 7 from the original

Tritanopia#2194A4no blue cones; rare, and affects men and women equally; ΔE 55.3 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 text5.65:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.3 Dodgerblue · ΔE 14.6 Royal blue · ΔE 17.3 Medium purple · ΔE 18.7 Slate blue · ΔE 21.3 Medium slateblue · ΔE 26.8

Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#DFC565

Analogous#65BCDF, #8865DF

Triadic#DF657F, #7FDF65

Split complementary#DF8865, #BCDF65

Tetradic#DF65BC, #DFC565, #65DF88

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#E4E8F9

Lighter +20%#B9C5F1

Lighter +10%#8FA2E8

Darker −10%#3B5CD6

Darker −20%#2645B8

Darker −30%#1D358E

Darker −40%#152563

More saturated +25%#4E72F6

Less saturated −25%#7C8CC8

Channel breakdown

R101

G127

B223

Red101 (39.6%)

Green127 (49.8%)

Blue223 (87.5%)

Hue227.21°

Saturation (HSL)65.59%

Lightness63.53%

Dominant channelBlue

Hex per channelR 65 · G 7F · B DF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#657FDF

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else