Colour

#031B4C

#031B4C
Blue
Dark
Nearest: Dark slateblue

#031B4C is a blue with RGB values 3, 27, 76 and HSL 220°, 92%, 15%. It is a dark colour, so white text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#031B4C#031B4C

HEX#031B4C

RGBrgb(3, 27, 76)

RGB (0–1)0.0118, 0.1059, 0.298

RGB percentages1.2%, 10.6%, 29.8%

HSLhsl(220.3, 92.4%, 15.5%)

HSV / HSBhsv(220.3, 96.1%, 29.8%)

CMYK96.1%, 64.5%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer203,596

CSS custom property--colour: #031B4C;

Brightness & contrast

Relative luminance0.01325WCAG 2.x, 0 is black and 1 is white

Perceived brightness33 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.6:1

Contrast with white16.6:1WCAG normal text: AAA

Contrast with black1.27:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#FCE4B3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00224Eno red cones; affects about 1% of men; ΔE 6 from the original

Deuteranopia#001B4Bno green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#002830no blue cones; rare, and affects men and women equally; ΔE 33.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.6:1WCAG large text: AAA

Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25 Midnight blue · ΔE 25.3 Black · ΔE 37.2 Rebecca purple · ΔE 39.3 Dark slate grey · ΔE 43.2 Indigo · ΔE 44.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.99, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4C3403

Analogous#03404C, #0F034C

Triadic#4C031B, #1B4C03

Split complementary#4C0F03, #404C03

Tetradic#4C0340, #4C3403, #034C10

Tints, shades & saturation

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

Lighter +40%#256AF6

Lighter +30%#094FDF

Lighter +20%#073EAE

Lighter +10%#052C7D

Darker −10%#010A1B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001A4F

Less saturated −25%#0D1E42

Channel breakdown

G27

B76

Red3 (1.2%)

Green27 (10.6%)

Blue76 (29.8%)

Hue220.27°

Saturation (HSL)92.41%

Lightness15.49%

Dominant channelBlue

Hex per channelR 03 · G 1B · B 4C

Keep nerding

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

#031B4C

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