Recognised as Colour

#011B3F

#011B3F
Blue
Dark
Nearest: Black

#011B3F is a blue with RGB values 1, 27, 63 and HSL 215°, 97%, 13%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#011B3F#011B3F

HEX#011B3F

RGBrgb(1, 27, 63)

RGB (0–1)0.0039, 0.1059, 0.2471

RGB percentages0.4%, 10.6%, 24.7%

HSLhsl(214.8, 96.9%, 12.5%)

HSV / HSBhsv(214.8, 98.4%, 24.7%)

CMYK98.4%, 57.1%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer72,511

CSS custom property--colour: #011B3F;

Brightness & contrast

Relative luminance0.01149WCAG 2.x, 0 is black and 1 is white

Perceived brightness29.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.08:1

Contrast with white17.08:1WCAG normal text: AAA

Contrast with black1.23:1WCAG normal text: Fail

Greyscale equivalent#181818

Inverted#FEE4C0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#051F40no red cones; affects about 1% of men; ΔE 3.3 from the original

Deuteranopia#00193Eno green cones; the most common form, about 1% of men; ΔE 1.4 from the original

Tritanopia#00242Ano blue cones; rare, and affects men and women equally; ΔE 24.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.08:1WCAG large text: AAA

Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Black · ΔE 28.5 Dark slateblue · ΔE 32.6 Midnight blue · ΔE 34.9 Dark slate grey · ΔE 35.7 Dim grey · ΔE 43.4 Steel blue · ΔE 44.1

Nearest named CSS colourBlack (#000000)ΔE 28.54, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3F2501

Analogous#013A3F, #06013F

Triadic#3F011B, #1B3F01

Split complementary#3F0601, #3A3F01

Tetradic#3F013A, #3F2501, #013F06

Tints, shades & saturation

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

Lighter +40%#1173FB

Lighter +30%#035CD6

Lighter +20%#0346A3

Lighter +10%#023171

Darker −10%#00050D

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001B40

Less saturated −25%#091C37

Channel breakdown

G27

B63

Red1 (0.4%)

Green27 (10.6%)

Blue63 (24.7%)

Hue214.84°

Saturation (HSL)96.88%

Lightness12.55%

Dominant channelBlue

Hex per channelR 01 · G 1B · B 3F

Keep nerding

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

#011B3F

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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