Recognised as Colour

#3F5B8E

#3F5B8E
Blue
Dark
Nearest: Steel blue

#3F5B8E is a blue with RGB values 63, 91, 142 and HSL 219°, 39%, 40%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3F5B8E#3F5B8E

HEX#3F5B8E

RGBrgb(63, 91, 142)

RGB (0–1)0.2471, 0.3569, 0.5569

RGB percentages24.7%, 35.7%, 55.7%

HSLhsl(218.7, 38.5%, 40.2%)

HSV / HSBhsv(218.7, 55.6%, 55.7%)

CMYK55.6%, 35.9%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,152,206

CSS custom property--colour: #3F5B8E;

Brightness & contrast

Relative luminance0.10492WCAG 2.x, 0 is black and 1 is white

Perceived brightness91.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.78:1

Contrast with white6.78:1WCAG normal text: AA

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

Greyscale equivalent#595959

Inverted#C0A471

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#475F90no red cones; affects about 1% of men; ΔE 2.4 from the original

Deuteranopia#3D588Dno green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#12666Eno blue cones; rare, and affects men and women equally; ΔE 32.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.78:1WCAG large text: AAA

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

Named colours

Steel blue · ΔE 16.7 Dark slateblue · ΔE 24.6 Slate grey · ΔE 26.3 Light slate grey · ΔE 27.7 Cornflower blue · ΔE 29.6 Dim grey · ΔE 32.4

Nearest named CSS colourSteel blue (#4682B4)ΔE 16.72, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8E723F

Analogous#3F838E, #4B3F8E

Triadic#8E3F5B, #5B8E3F

Split complementary#8E4B3F, #828E3F

Tetradic#8E3F82, #8E723F, #3F8E4B

Tints, shades & saturation

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

Lighter +40%#B9C7E0

Lighter +30%#96AAD0

Lighter +20%#728EC1

Lighter +10%#4F72B1

Darker −10%#2F446B

Darker −20%#202E47

Darker −30%#101724

Darker −40%#000001

More saturated +25%#2554A8

Less saturated −25%#596274

Channel breakdown

R63

G91

B142

Red63 (24.7%)

Green91 (35.7%)

Blue142 (55.7%)

Hue218.73°

Saturation (HSL)38.54%

Lightness40.2%

Dominant channelBlue

Hex per channelR 3F · G 5B · B 8E

Keep nerding

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

#3F5B8E

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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