Recognised as Colour

#405B8D

#405B8D
Blue
Dark
Nearest: Steel blue

#405B8D is a blue with RGB values 64, 91, 141 and HSL 219°, 38%, 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

#405B8D#405B8D

HEX#405B8D

RGBrgb(64, 91, 141)

RGB (0–1)0.251, 0.3569, 0.5529

RGB percentages25.1%, 35.7%, 55.3%

HSLhsl(219, 37.6%, 40.2%)

HSV / HSBhsv(219, 54.6%, 55.3%)

CMYK54.6%, 35.5%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,217,741

CSS custom property--colour: #405B8D;

Brightness & contrast

Relative luminance0.10495WCAG 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#BFA472

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#475F8Fno red cones; affects about 1% of men; ΔE 2.3 from the original

Deuteranopia#3E588Cno green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#17666Dno blue cones; rare, and affects men and women equally; ΔE 32.5 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 24.9 Slate grey · ΔE 25.8 Light slate grey · ΔE 27.2 Cornflower blue · ΔE 30 Dim grey · ΔE 31.7

Nearest named CSS colourSteel blue (#4682B4)ΔE 16.7, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8D7240

Analogous#40828D, #4C408D

Triadic#8D405B, #5B8D40

Split complementary#8D4C40, #828D40

Tetradic#8D4082, #8D7240, #408D4C

Tints, shades & saturation

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

Lighter +40%#BAC7DF

Lighter +30%#96AAD0

Lighter +20%#738EC0

Lighter +10%#5072B0

Darker −10%#30446A

Darker −20%#202E47

Darker −30%#101724

Darker −40%#000001

More saturated +25%#2653A7

Less saturated −25%#5A6373

Channel breakdown

R64

G91

B141

Red64 (25.1%)

Green91 (35.7%)

Blue141 (55.3%)

Hue218.96°

Saturation (HSL)37.56%

Lightness40.2%

Dominant channelBlue

Hex per channelR 40 · G 5B · B 8D

Keep nerding

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

#405B8D

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

Nerdulate something else