Recognised as Colour

#001F3C

#001F3C
Blue
Dark
Nearest: Black

#001F3C is a blue with RGB values 0, 31, 60 and HSL 209°, 100%, 12%. It is a dark colour, so white text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001F3C#001F3C

HEX#001F3C

RGBrgb(0, 31, 60)

RGB (0–1)0, 0.1216, 0.2353

RGB percentages0%, 12.2%, 23.5%

HSLhsl(209, 100%, 11.8%)

HSV / HSBhsv(209, 100%, 23.5%)

CMYK100%, 48.3%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,996

CSS custom property--colour: #001F3C;

Brightness & contrast

Relative luminance0.01306WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.65:1

Contrast with white16.65:1WCAG normal text: AAA

Contrast with black1.26:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#FFE0C3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#10213Dno red cones; affects about 1% of men; ΔE 3 from the original

Deuteranopia#051C3Bno green cones; the most common form, about 1% of men; ΔE 3 from the original

Tritanopia#00262Ano blue cones; rare, and affects men and women equally; ΔE 20.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.65:1WCAG large text: AAA

Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Black · ΔE 24.7 Dark slate grey · ΔE 30.2 Dark slateblue · ΔE 37 Dim grey · ΔE 39.7 Midnight blue · ΔE 40.9 Steel blue · ΔE 42.9

Nearest named CSS colourBlack (#000000)ΔE 24.67, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3C1D00

Analogous#003C3B, #00013C

Triadic#3C001F, #1F3C00

Split complementary#3C0001, #3C3B00

Tetradic#3B003C, #3C1D00, #013C00

Tints, shades & saturation

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

Lighter +40%#0988FF

Lighter +30%#006ED5

Lighter +20%#0054A2

Lighter +10%#00396F

Darker −10%#000509

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001F3C

Less saturated −25%#081F34

Channel breakdown

G31

B60

Red0 (0%)

Green31 (12.2%)

Blue60 (23.5%)

Hue209°

Saturation (HSL)100%

Lightness11.76%

Dominant channelBlue

Hex per channelR 00 · G 1F · B 3C

Keep nerding

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

#001F3C

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