Colour

#3A8CD1

#3A8CD1
Blue
Dark
Nearest: Steel blue

#3A8CD1 is a blue with RGB values 58, 140, 209 and HSL 207°, 62%, 52%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3A8CD1#3A8CD1

HEX#3A8CD1

RGBrgb(58, 140, 209)

RGB (0–1)0.2275, 0.549, 0.8196

RGB percentages22.7%, 54.9%, 82%

HSLhsl(207.4, 62.1%, 52.4%)

HSV / HSBhsv(207.4, 72.2%, 82%)

CMYK72.2%, 33%, 0%, 18%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,837,137

CSS custom property--colour: #3A8CD1;

Brightness & contrast

Relative luminance0.24259WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.85:1

Contrast with white3.59:1WCAG normal text: Fail

Contrast with black5.85:1WCAG normal text: AA

Greyscale equivalent#808080

Inverted#C5732E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D8FD4no red cones; affects about 1% of men; ΔE 10.1 from the original

Deuteranopia#5781D0no green cones; the most common form, about 1% of men; ΔE 11.6 from the original

Tritanopia#009DA5no blue cones; rare, and affects men and women equally; ΔE 40.8 from the original

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

Contrast with white, large text3.59:1WCAG large text: AA

Contrast with black, large text5.85:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.3 Cornflower blue · ΔE 14.2 Deep skyblue · ΔE 22.6 Dodgerblue · ΔE 24.1 Light skyblue · ΔE 28.7 Light slate grey · ΔE 31.5

Nearest named CSS colourSteel blue (#4682B4)ΔE 11.34, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D17F3A

Analogous#3AD1CB, #3A40D1

Triadic#D13A8C, #8CD13A

Split complementary#D13A40, #D1CB3A

Tetradic#CB3AD1, #D17F3A, #40D13A

Tints, shades & saturation

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

Lighter +40%#DFEDF8

Lighter +30%#B6D4EE

Lighter +20%#8DBCE4

Lighter +10%#63A4DB

Darker −10%#2972AF

Darker −20%#1F5786

Darker −30%#163C5C

Darker −40%#0C2133

More saturated +25%#1C8FEF

Less saturated −25%#5889B3

Channel breakdown

R58

G140

B209

Red58 (22.7%)

Green140 (54.9%)

Blue209 (82%)

Hue207.42°

Saturation (HSL)62.14%

Lightness52.35%

Dominant channelBlue

Hex per channelR 3A · G 8C · B D1

Keep nerding

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#3A8CD1

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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