Colour

#00317A

#00317A
Blue
Dark
Nearest: Dark slateblue

#00317A is a blue with RGB values 0, 49, 122 and HSL 216°, 100%, 24%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00317A#00317A

HEX#00317A

RGBrgb(0, 49, 122)

RGB (0–1)0, 0.1922, 0.4784

RGB percentages0%, 19.2%, 47.8%

HSLhsl(215.9, 100%, 23.9%)

HSV / HSBhsv(215.9, 100%, 47.8%)

CMYK100%, 59.8%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,666

CSS custom property--colour: #00317A;

Brightness & contrast

Relative luminance0.03602WCAG 2.x, 0 is black and 1 is white

Perceived brightness55.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.21:1

Contrast with white12.21:1WCAG normal text: AAA

Contrast with black1.72:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#FFCE85

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003B7Cno red cones; affects about 1% of men; ΔE 8.1 from the original

Deuteranopia#003079no green cones; the most common form, about 1% of men; ΔE 0.5 from the original

Tritanopia#004450no blue cones; rare, and affects men and women equally; ΔE 45.5 from the original

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

Contrast with white, large text12.21:1WCAG large text: AAA

Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.7 Midnight blue · ΔE 16.4 Rebecca purple · ΔE 27.8 Slate blue · ΔE 32.2 Royal blue · ΔE 33.6 Indigo · ΔE 35.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.72, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7A4900

Analogous#006E7A, #0C007A

Triadic#7A0031, #317A00

Split complementary#7A0C00, #6E7A00

Tetradic#7A006E, #7A4900, #007A0C

Tints, shades & saturation

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

Lighter +40%#4791FF

Lighter +30%#1472FF

Lighter +20%#005AE0

Lighter +10%#0045AD

Darker −10%#001D47

Darker −20%#000814

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00317A

Less saturated −25%#0F346B

Channel breakdown

G49

B122

Red0 (0%)

Green49 (19.2%)

Blue122 (47.8%)

Hue215.9°

Saturation (HSL)100%

Lightness23.92%

Dominant channelBlue

Hex per channelR 00 · G 31 · B 7A

Keep nerding

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

#00317A

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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