Colour

#1F194B

#1F194B
Blue
Dark
Nearest: Dark slateblue

#1F194B is a blue with RGB values 31, 25, 75 and HSL 247°, 50%, 20%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1F194B#1F194B

HEX#1F194B

RGBrgb(31, 25, 75)

RGB (0–1)0.1216, 0.098, 0.2941

RGB percentages12.2%, 9.8%, 29.4%

HSLhsl(247.2, 50%, 19.6%)

HSV / HSBhsv(247.2, 66.7%, 29.4%)

CMYK58.7%, 66.7%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,038,091

CSS custom property--colour: #1F194B;

Brightness & contrast

Relative luminance0.01495WCAG 2.x, 0 is black and 1 is white

Perceived brightness36 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.17:1

Contrast with white16.17:1WCAG normal text: AAA

Contrast with black1.3:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#E0E6B4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00224Dno red cones; affects about 1% of men; ΔE 11.1 from the original

Deuteranopia#001F4Ano green cones; the most common form, about 1% of men; ΔE 10.1 from the original

Tritanopia#0D252Fno blue cones; rare, and affects men and women equally; ΔE 32.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.17:1WCAG large text: AAA

Contrast with black, large text1.3:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.9 Midnight blue · ΔE 23.4 Rebecca purple · ΔE 35.7 Black · ΔE 37.8 Indigo · ΔE 40.8 Purple · ΔE 44

Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.91, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#454B19

Analogous#192C4B, #38194B

Triadic#4B1F19, #194B1F

Split complementary#4B3819, #2C4B19

Tetradic#4B192C, #454B19, #194B38

Tints, shades & saturation

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

Lighter +40%#7164CC

Lighter +30%#4E3FBE

Lighter +20%#3F3298

Lighter +10%#2F2671

Darker −10%#0F0C25

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#160C58

Less saturated −25%#29253F

Channel breakdown

R31

G25

B75

Red31 (12.2%)

Green25 (9.8%)

Blue75 (29.4%)

Hue247.2°

Saturation (HSL)50%

Lightness19.61%

Dominant channelBlue

Hex per channelR 1F · G 19 · B 4B

Keep nerding

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#1F194B

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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