Colour

#101F3B

#101F3B
Blue
Dark
Nearest: Black

#101F3B is a blue with RGB values 16, 31, 59 and HSL 219°, 57%, 15%. It is a dark colour, so white text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#101F3B#101F3B

HEX#101F3B

RGBrgb(16, 31, 59)

RGB (0–1)0.0627, 0.1216, 0.2314

RGB percentages6.3%, 12.2%, 23.1%

HSLhsl(219.1, 57.3%, 14.7%)

HSV / HSBhsv(219.1, 72.9%, 23.1%)

CMYK72.9%, 47.5%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,056,571

CSS custom property--colour: #101F3B;

Brightness & contrast

Relative luminance0.01406WCAG 2.x, 0 is black and 1 is white

Perceived brightness32.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.39:1

Contrast with white16.39:1WCAG normal text: AAA

Contrast with black1.28:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#EFE0C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#12223Cno red cones; affects about 1% of men; ΔE 2.2 from the original

Deuteranopia#0C1E3Ano green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#00252Ano blue cones; rare, and affects men and women equally; ΔE 20 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.39:1WCAG large text: AAA

Contrast with black, large text1.28:1WCAG large text: Fail

Named colours

Black · ΔE 23.8 Dark slate grey · ΔE 30 Dark slateblue · ΔE 36.1 Dim grey · ΔE 38.4 Midnight blue · ΔE 40.3 Slate grey · ΔE 42.4

Nearest named CSS colourBlack (#000000)ΔE 23.76, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B2C10

Analogous#10353B, #16103B

Triadic#3B101F, #1F3B10

Split complementary#3B1610, #353B10

Tetradic#3B1035, #3B2C10, #103B16

Tints, shades & saturation

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

Lighter +40%#4977CE

Lighter +30%#315EB3

Lighter +20%#26498B

Lighter +10%#1B3463

Darker −10%#050A13

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#071C44

Less saturated −25%#192232

Channel breakdown

R16

G31

B59

Red16 (6.3%)

Green31 (12.2%)

Blue59 (23.1%)

Hue219.07°

Saturation (HSL)57.33%

Lightness14.71%

Dominant channelBlue

Hex per channelR 10 · G 1F · B 3B

Keep nerding

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

#101F3B

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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