Recognised as Colour

#031B38

#031B38
Blue
Dark
Nearest: Black

#031B38 is a blue with RGB values 3, 27, 56 and HSL 213°, 90%, 12%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#031B38#031B38

HEX#031B38

RGBrgb(3, 27, 56)

RGB (0–1)0.0118, 0.1059, 0.2196

RGB percentages1.2%, 10.6%, 22%

HSLhsl(212.8, 89.8%, 11.6%)

HSV / HSBhsv(212.8, 94.6%, 22%)

CMYK94.6%, 51.8%, 0%, 78%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer203,576

CSS custom property--colour: #031B38;

Brightness & contrast

Relative luminance0.01089WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.24:1

Contrast with white17.24:1WCAG normal text: AAA

Contrast with black1.22:1WCAG normal text: Fail

Greyscale equivalent#181818

Inverted#FCE4C7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0C1E39no red cones; affects about 1% of men; ΔE 2.4 from the original

Deuteranopia#021937no green cones; the most common form, about 1% of men; ΔE 1.4 from the original

Tritanopia#002226no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.24:1WCAG large text: AAA

Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Black · ΔE 23.9 Dark slate grey · ΔE 32 Dark slateblue · ΔE 37 Midnight blue · ΔE 40.1 Dim grey · ΔE 41 Steel blue · ΔE 44.7

Nearest named CSS colourBlack (#000000)ΔE 23.93, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#382003

Analogous#033538, #060338

Triadic#38031B, #1B3803

Split complementary#380603, #353803

Tetradic#380335, #382003, #033806

Tints, shades & saturation

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

Lighter +40%#1579F2

Lighter +30%#0B61C9

Lighter +20%#084A99

Lighter +10%#063268

Darker −10%#000408

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001B3B

Less saturated −25%#0A1C31

Channel breakdown

G27

B56

Red3 (1.2%)

Green27 (10.6%)

Blue56 (22%)

Hue212.83°

Saturation (HSL)89.83%

Lightness11.57%

Dominant channelBlue

Hex per channelR 03 · G 1B · B 38

Keep nerding

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

#031B38

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