Recognised as Colour

#182F40

#182F40
Blue
Dark
Nearest: Dark slate grey

#182F40 is a blue with RGB values 24, 47, 64 and HSL 206°, 45%, 17%. It is a dark colour, so white text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#182F40#182F40

HEX#182F40

RGBrgb(24, 47, 64)

RGB (0–1)0.0941, 0.1843, 0.251

RGB percentages9.4%, 18.4%, 25.1%

HSLhsl(205.5, 45.5%, 17.3%)

HSV / HSBhsv(205.5, 62.5%, 25.1%)

CMYK62.5%, 26.6%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,584,960

CSS custom property--colour: #182F40;

Brightness & contrast

Relative luminance0.02597WCAG 2.x, 0 is black and 1 is white

Perceived brightness44 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.82:1

Contrast with white13.82:1WCAG normal text: AAA

Contrast with black1.52:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#E7D0BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#282F41no red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#222B40no green cones; the most common form, about 1% of men; ΔE 5.9 from the original

Tritanopia#003335no blue cones; rare, and affects men and women equally; ΔE 13.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.82:1WCAG large text: AAA

Contrast with black, large text1.52:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.3 Black · ΔE 23 Dim grey · ΔE 29.5 Slate grey · ΔE 34.6 Light slate grey · ΔE 37.6 Gray · ΔE 37.8

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.34, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#402918

Analogous#18403D, #181B40

Triadic#40182F, #2F4018

Split complementary#40181B, #403D18

Tetradic#3D1840, #402918, #1B4018

Tints, shades & saturation

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

Lighter +40%#6099C4

Lighter +30%#4281AF

Lighter +20%#34658A

Lighter +10%#264A65

Darker −10%#0A141B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0D314B

Less saturated −25%#232D35

Channel breakdown

R24

G47

B64

Red24 (9.4%)

Green47 (18.4%)

Blue64 (25.1%)

Hue205.5°

Saturation (HSL)45.45%

Lightness17.25%

Dominant channelBlue

Hex per channelR 18 · G 2F · B 40

Keep nerding

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

#182F40

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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