Colour

#3C9BD7

#3C9BD7
Blue
Dark
Nearest: Steel blue

#3C9BD7 is a blue with RGB values 60, 155, 215 and HSL 203°, 66%, 54%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3C9BD7#3C9BD7

HEX#3C9BD7

RGBrgb(60, 155, 215)

RGB (0–1)0.2353, 0.6078, 0.8431

RGB percentages23.5%, 60.8%, 84.3%

HSLhsl(203.2, 66%, 53.9%)

HSV / HSBhsv(203.2, 72.1%, 84.3%)

CMYK72.1%, 27.9%, 0%, 15.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,972,055

CSS custom property--colour: #3C9BD7;

Brightness & contrast

Relative luminance0.2931WCAG 2.x, 0 is black and 1 is white

Perceived brightness143 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.86:1

Contrast with white3.06:1WCAG normal text: Fail

Contrast with black6.86:1WCAG normal text: AA

Greyscale equivalent#8B8B8B

Inverted#C36428

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F9CDAno red cones; affects about 1% of men; ΔE 14.8 from the original

Deuteranopia#6A8DD6no green cones; the most common form, about 1% of men; ΔE 16.6 from the original

Tritanopia#00AAB0no blue cones; rare, and affects men and women equally; ΔE 35.8 from the original

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

Contrast with white, large text3.06:1WCAG large text: AA

Contrast with black, large text6.86:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.5 Deep skyblue · ΔE 15.4 Cornflower blue · ΔE 20.6 Light skyblue · ΔE 21.4 Sky blue · ΔE 26 Light slate grey · ΔE 28.6

Nearest named CSS colourSteel blue (#4682B4)ΔE 11.47, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D7783C

Analogous#3CD7C6, #3C4DD7

Triadic#D73C9B, #9BD73C

Split complementary#D73C4D, #D7C63C

Tetradic#C63CD7, #D7783C, #4DD73C

Tints, shades & saturation

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

Lighter +40%#E5F2FA

Lighter +30%#BBDCF1

Lighter +20%#91C6E8

Lighter +10%#66B1E0

Darker −10%#2681BA

Darker −20%#1D6390

Darker −30%#154665

Darker −40%#0C293B

More saturated +25%#1FA2F4

Less saturated −25%#5994BA

Channel breakdown

R60

G155

B215

Red60 (23.5%)

Green155 (60.8%)

Blue215 (84.3%)

Hue203.23°

Saturation (HSL)65.96%

Lightness53.92%

Dominant channelBlue

Hex per channelR 3C · G 9B · B D7

Keep nerding

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#3C9BD7

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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