Colour

#00183D

#00183D
Blue
Dark
Nearest: Black

#00183D is a blue with RGB values 0, 24, 61 and HSL 216°, 100%, 12%. 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

#00183D#00183D

HEX#00183D

RGBrgb(0, 24, 61)

RGB (0–1)0, 0.0941, 0.2392

RGB percentages0%, 9.4%, 23.9%

HSLhsl(216.4, 100%, 12%)

HSV / HSBhsv(216.4, 100%, 23.9%)

CMYK100%, 60.7%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,205

CSS custom property--colour: #00183D;

Brightness & contrast

Relative luminance0.0099WCAG 2.x, 0 is black and 1 is white

Perceived brightness27.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.53:1

Contrast with white17.53:1WCAG normal text: AAA

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

Greyscale equivalent#161616

Inverted#FFE7C2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001C3Eno red cones; affects about 1% of men; ΔE 3.5 from the original

Deuteranopia#00173Cno green cones; the most common form, about 1% of men; ΔE 0.5 from the original

Tritanopia#002127no blue cones; rare, and affects men and women equally; ΔE 25.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.53:1WCAG large text: AAA

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

Named colours

Black · ΔE 29 Dark slateblue · ΔE 32.4 Midnight blue · ΔE 33.8 Dark slate grey · ΔE 37.5 Dim grey · ΔE 45 Steel blue · ΔE 45.6

Nearest named CSS colourBlack (#000000)ΔE 29.02, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3D2500

Analogous#00373D, #07003D

Triadic#3D0018, #183D00

Split complementary#3D0700, #363D00

Tetradic#3D0036, #3D2500, #003D07

Tints, shades & saturation

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

Lighter +40%#0A6AFF

Lighter +30%#0054D6

Lighter +20%#0040A3

Lighter +10%#002C70

Darker −10%#00040A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00183D

Less saturated −25%#081A35

Channel breakdown

G24

B61

Red0 (0%)

Green24 (9.4%)

Blue61 (23.9%)

Hue216.39°

Saturation (HSL)100%

Lightness11.96%

Dominant channelBlue

Hex per channelR 00 · G 18 · B 3D

Keep nerding

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

#00183D

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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