Colour

#4047CF

#4047CF
Blue
Dark
Nearest: Medium slateblue

#4047CF is a blue with RGB values 64, 71, 207 and HSL 237°, 60%, 53%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#4047CF#4047CF

HEX#4047CF

RGBrgb(64, 71, 207)

RGB (0–1)0.251, 0.2784, 0.8118

RGB percentages25.1%, 27.8%, 81.2%

HSLhsl(237.1, 59.8%, 53.1%)

HSV / HSBhsv(237.1, 69.1%, 81.2%)

CMYK69.1%, 65.7%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,212,687

CSS custom property--colour: #4047CF;

Brightness & contrast

Relative luminance0.10101WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.95:1

Contrast with white6.95:1WCAG normal text: AA

Contrast with black3.02:1WCAG normal text: Fail

Greyscale equivalent#4F4F4F

Inverted#BFB830

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0060D3no red cones; affects about 1% of men; ΔE 20.4 from the original

Deuteranopia#0053CCno green cones; the most common form, about 1% of men; ΔE 13.6 from the original

Tritanopia#006B85no blue cones; rare, and affects men and women equally; ΔE 75.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.95:1WCAG large text: AAA

Contrast with black, large text3.02:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 15.2 Slate blue · ΔE 15.9 Royal blue · ΔE 18.6 Rebecca purple · ΔE 24.4 Dark blue · ΔE 25.2 Navy · ΔE 26.6

Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 15.19, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CFC840

Analogous#408ECF, #8040CF

Triadic#CF4047, #47CF40

Split complementary#CF8140, #8FCF40

Tetradic#CF408F, #CFC840, #40CF81

Tints, shades & saturation

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

Lighter +40%#E3E4F8

Lighter +30%#BABDEE

Lighter +20%#9296E3

Lighter +10%#696ED9

Darker −10%#2C33B0

Darker −20%#222787

Darker −30%#181B5E

Darker −40%#0D0F36

More saturated +25%#222CED

Less saturated −25%#5E62B1

Channel breakdown

R64

G71

B207

Red64 (25.1%)

Green71 (27.8%)

Blue207 (81.2%)

Hue237.06°

Saturation (HSL)59.83%

Lightness53.14%

Dominant channelBlue

Hex per channelR 40 · G 47 · B CF

Keep nerding

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#4047CF

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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