Colour

#645DCE

#645DCE
Blue
Dark
Nearest: Slate blue

#645DCE is a blue with RGB values 100, 93, 206 and HSL 244°, 54%, 59%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#645DCE#645DCE

HEX#645DCE

RGBrgb(100, 93, 206)

RGB (0–1)0.3922, 0.3647, 0.8078

RGB percentages39.2%, 36.5%, 80.8%

HSLhsl(243.7, 53.6%, 58.6%)

HSV / HSBhsv(243.7, 54.9%, 80.8%)

CMYK51.5%, 54.9%, 0%, 19.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,577,614

CSS custom property--colour: #645DCE;

Brightness & contrast

Relative luminance0.14994WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.25:1

Contrast with white5.25:1WCAG normal text: AA

Contrast with black4:1WCAG normal text: Fail

Greyscale equivalent#676767

Inverted#9BA231

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1670D2no red cones; affects about 1% of men; ΔE 21.3 from the original

Deuteranopia#0168CCno green cones; the most common form, about 1% of men; ΔE 19.3 from the original

Tritanopia#39778Cno blue cones; rare, and affects men and women equally; ΔE 61.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.25:1WCAG large text: AAA

Contrast with black, large text4:1WCAG large text: AA

Named colours

Slate blue · ΔE 2.8 Royal blue · ΔE 10.4 Medium slateblue · ΔE 12.6 Medium purple · ΔE 12.7 Rebecca purple · ΔE 19.2 Dark slateblue · ΔE 22.8

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 2.77, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C7CE5D

Analogous#5D8FCE, #9C5DCE

Triadic#CE645D, #5DCE64

Split complementary#CE9D5D, #8FCE5D

Tetradic#CE5D8F, #C7CE5D, #5DCE9C

Tints, shades & saturation

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

Lighter +40%#FAFAFD

Lighter +30%#D4D2F2

Lighter +20%#AFABE6

Lighter +10%#8984DA

Darker −10%#423ABE

Darker −20%#342E97

Darker −30%#272270

Darker −40%#191649

More saturated +25%#4D43E8

Less saturated −25%#7B77B4

Channel breakdown

R100

G93

B206

Red100 (39.2%)

Green93 (36.5%)

Blue206 (80.8%)

Hue243.72°

Saturation (HSL)53.55%

Lightness58.63%

Dominant channelBlue

Hex per channelR 64 · G 5D · B CE

Keep nerding

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

#645DCE

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

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