Colour

#3A578E

#3A578E
Blue
Dark
Nearest: Steel blue

#3A578E is a blue with RGB values 58, 87, 142 and HSL 219°, 42%, 39%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#3A578E#3A578E

HEX#3A578E

RGBrgb(58, 87, 142)

RGB (0–1)0.2275, 0.3412, 0.5569

RGB percentages22.7%, 34.1%, 55.7%

HSLhsl(219.3, 42%, 39.2%)

HSV / HSBhsv(219.3, 59.2%, 55.7%)

CMYK59.2%, 38.7%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,823,502

CSS custom property--colour: #3A578E;

Brightness & contrast

Relative luminance0.09669WCAG 2.x, 0 is black and 1 is white

Perceived brightness88 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.16:1

Contrast with white7.16:1WCAG normal text: AAA

Contrast with black2.93:1WCAG normal text: Fail

Greyscale equivalent#555555

Inverted#C5A871

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#405C90no red cones; affects about 1% of men; ΔE 2.9 from the original

Deuteranopia#35548Dno green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#00636Bno blue cones; rare, and affects men and women equally; ΔE 35.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text7.16:1WCAG large text: AAA

Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Steel blue · ΔE 18.8 Dark slateblue · ΔE 21.9 Cornflower blue · ΔE 29.3 Slate grey · ΔE 29.3 Light slate grey · ΔE 30.7 Dim grey · ΔE 35.2

Nearest named CSS colourSteel blue (#4682B4)ΔE 18.79, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8E713A

Analogous#3A818E, #473A8E

Triadic#8E3A57, #578E3A

Split complementary#8E473A, #818E3A

Tetradic#8E3A81, #8E713A, #3A8E47

Tints, shades & saturation

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

Lighter +40%#B4C3E0

Lighter +30%#90A6D1

Lighter +20%#6B89C3

Lighter +10%#496DB2

Darker −10%#2B416A

Darker −20%#1C2B46

Darker −30%#0E1421

Darker −40%#000000

More saturated +25%#214FA7

Less saturated −25%#535F75

Channel breakdown

R58

G87

B142

Red58 (22.7%)

Green87 (34.1%)

Blue142 (55.7%)

Hue219.29°

Saturation (HSL)42%

Lightness39.22%

Dominant channelBlue

Hex per channelR 3A · G 57 · B 8E

Keep nerding

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

#3A578E

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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