Recognised as Colour

#657FDB

#657FDB
Blue
Dark
Nearest: Cornflower blue

#657FDB is a blue with RGB values 101, 127, 219 and HSL 227°, 62%, 63%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#657FDB#657FDB

HEX#657FDB

RGBrgb(101, 127, 219)

RGB (0–1)0.3961, 0.498, 0.8588

RGB percentages39.6%, 49.8%, 85.9%

HSLhsl(226.8, 62.1%, 62.7%)

HSV / HSBhsv(226.8, 53.9%, 85.9%)

CMYK53.9%, 42%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,651,867

CSS custom property--colour: #657FDB;

Brightness & contrast

Relative luminance0.2306WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.61:1

Contrast with white3.74:1WCAG normal text: Fail

Contrast with black5.61:1WCAG normal text: AA

Greyscale equivalent#808080

Inverted#9A8024

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5889DFno red cones; affects about 1% of men; ΔE 7.8 from the original

Deuteranopia#4A7FD9no green cones; the most common form, about 1% of men; ΔE 6.1 from the original

Tritanopia#2793A2no blue cones; rare, and affects men and women equally; ΔE 53.1 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 text5.61:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.2 Dodgerblue · ΔE 15.6 Royal blue · ΔE 19.3 Medium purple · ΔE 19.9 Slate blue · ΔE 22.9 Dark slateblue · ΔE 27.2

Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.18, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DBC165

Analogous#65BADB, #8665DB

Triadic#DB657F, #7FDB65

Split complementary#DB8665, #BADB65

Tetradic#DB65BA, #DBC165, #65DB86

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#E1E6F8

Lighter +20%#B8C4EE

Lighter +10%#8EA1E5

Darker −10%#3C5DD1

Darker −20%#2947B1

Darker −30%#203687

Darker −40%#16265E

More saturated +25%#4D72F3

Less saturated −25%#7D8CC3

Channel breakdown

R101

G127

B219

Red101 (39.6%)

Green127 (49.8%)

Blue219 (85.9%)

Hue226.78°

Saturation (HSL)62.11%

Lightness62.75%

Dominant channelBlue

Hex per channelR 65 · G 7F · B DB

Keep nerding

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

#657FDB

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