Colour

#011B31

#011B31
Blue
Dark
Nearest: Black

#011B31 is a blue with RGB values 1, 27, 49 and HSL 208°, 96%, 10%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#011B31#011B31

HEX#011B31

RGBrgb(1, 27, 49)

RGB (0–1)0.0039, 0.1059, 0.1922

RGB percentages0.4%, 10.6%, 19.2%

HSLhsl(207.5, 96%, 9.8%)

HSV / HSBhsv(207.5, 98%, 19.2%)

CMYK98%, 44.9%, 0%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer72,497

CSS custom property--colour: #011B31;

Brightness & contrast

Relative luminance0.01012WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.46:1

Contrast with white17.46:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#FEE4CE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#101C32no red cones; affects about 1% of men; ΔE 3.6 from the original

Deuteranopia#081831no green cones; the most common form, about 1% of men; ΔE 4.2 from the original

Tritanopia#002023no blue cones; rare, and affects men and women equally; ΔE 15.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.46:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 19.7 Dark slate grey · ΔE 28.5 Dim grey · ΔE 39.4 Dark slateblue · ΔE 42 Slate grey · ΔE 44.3 Midnight blue · ΔE 45.7

Nearest named CSS colourBlack (#000000)ΔE 19.7, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#311701

Analogous#01312F, #010331

Triadic#31011B, #1B3101

Split complementary#310103, #312F01

Tetradic#2F0131, #311701, #033101

Tints, shades & saturation

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

Lighter +40%#0589F9

Lighter +30%#046EC7

Lighter +20%#035295

Lighter +10%#023763

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001B32

Less saturated −25%#071A2B

Channel breakdown

G27

B49

Red1 (0.4%)

Green27 (10.6%)

Blue49 (19.2%)

Hue207.5°

Saturation (HSL)96%

Lightness9.8%

Dominant channelBlue

Hex per channelR 01 · G 1B · B 31

Keep nerding

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

#011B31

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