Colour

#1540F1

#1540F1
Blue
Dark
Nearest: Medium blue

#1540F1 is a blue with RGB values 21, 64, 241 and HSL 228°, 89%, 51%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#1540F1#1540F1

HEX#1540F1

RGBrgb(21, 64, 241)

RGB (0–1)0.0824, 0.251, 0.9451

RGB percentages8.2%, 25.1%, 94.5%

HSLhsl(228.3, 88.7%, 51.4%)

HSV / HSBhsv(228.3, 91.3%, 94.5%)

CMYK91.3%, 73.4%, 0%, 5.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,392,881

CSS custom property--colour: #1540F1;

Brightness & contrast

Relative luminance0.10177WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.92:1

Contrast with white6.92:1WCAG normal text: AA

Contrast with black3.04:1WCAG normal text: Fail

Greyscale equivalent#444444

Inverted#EABF0E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0064F6no red cones; affects about 1% of men; ΔE 25.1 from the original

Deuteranopia#004FEEno green cones; the most common form, about 1% of men; ΔE 12.4 from the original

Tritanopia#007596no blue cones; rare, and affects men and women equally; ΔE 94.9 from the original

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

Contrast with white, large text6.92:1WCAG large text: AAA

Contrast with black, large text3.04:1WCAG large text: AA

Named colours

Medium blue · ΔE 18.8 Blue violet · ΔE 22.7 Dark violet · ΔE 30.1 Medium slateblue · ΔE 31.2 Blue · ΔE 31.5 Dark blue · ΔE 32

Nearest named CSS colourMedium blue (#0000CD)ΔE 18.84, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#F1C615

Analogous#15AEF1, #5815F1

Triadic#F11540, #40F115

Split complementary#F15815, #AEF115

Tetradic#F115AE, #F1C615, #15F158

Tints, shades & saturation

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

Lighter +40%#D5DDFD

Lighter +30%#A5B6FA

Lighter +20%#758FF7

Lighter +10%#4567F4

Darker −10%#0C30C7

Darker −20%#092597

Darker −30%#061967

Darker −40%#030D37

More saturated +25%#0737FF

Less saturated −25%#3453D2

Channel breakdown

R21

G64

B241

Red21 (8.2%)

Green64 (25.1%)

Blue241 (94.5%)

Hue228.27°

Saturation (HSL)88.71%

Lightness51.37%

Dominant channelBlue

Hex per channelR 15 · G 40 · B F1

Keep nerding

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

#1540F1

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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