Colour

#00409D

#00409D
Blue
Dark
Nearest: Dark slateblue

#00409D is a blue with RGB values 0, 64, 157 and HSL 216°, 100%, 31%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00409D#00409D

HEX#00409D

RGBrgb(0, 64, 157)

RGB (0–1)0, 0.251, 0.6157

RGB percentages0%, 25.1%, 61.6%

HSLhsl(215.5, 100%, 30.8%)

HSV / HSBhsv(215.5, 100%, 61.6%)

CMYK100%, 59.2%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,541

CSS custom property--colour: #00409D;

Brightness & contrast

Relative luminance0.06101WCAG 2.x, 0 is black and 1 is white

Perceived brightness72.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.46:1

Contrast with white9.46:1WCAG normal text: AAA

Contrast with black2.22:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#FFBF62

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004DA0no red cones; affects about 1% of men; ΔE 9.9 from the original

Deuteranopia#003F9Bno green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#005868no blue cones; rare, and affects men and women equally; ΔE 54.9 from the original

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

Contrast with white, large text9.46:1WCAG large text: AAA

Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.9 Midnight blue · ΔE 18 Royal blue · ΔE 21.3 Slate blue · ΔE 21.5 Rebecca purple · ΔE 23 Medium purple · ΔE 30

Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.86, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#9D5D00

Analogous#008E9D, #0F009D

Triadic#9D0040, #409D00

Split complementary#9D0F00, #8F9D00

Tetradic#9D008E, #9D5D00, #009D0F

Tints, shades & saturation

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

Lighter +40%#6AA7FF

Lighter +30%#3789FF

Lighter +20%#046AFF

Lighter +10%#0055D0

Darker −10%#002B6A

Darker −20%#001637

Darker −30%#000204

Darker −40%#000000

More saturated +25%#00409D

Less saturated −25%#144489

Channel breakdown

G64

B157

Red0 (0%)

Green64 (25.1%)

Blue157 (61.6%)

Hue215.54°

Saturation (HSL)100%

Lightness30.78%

Dominant channelBlue

Hex per channelR 00 · G 40 · B 9D

Keep nerding

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

#00409D

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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