Recognised as Colour

#303B4F

#303B4F
Blue
Dark
Nearest: Dark slate grey

#303B4F is a blue with RGB values 48, 59, 79 and HSL 219°, 24%, 25%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#303B4F#303B4F

HEX#303B4F

RGBrgb(48, 59, 79)

RGB (0–1)0.1882, 0.2314, 0.3098

RGB percentages18.8%, 23.1%, 31%

HSLhsl(218.7, 24.4%, 24.9%)

HSV / HSBhsv(218.7, 39.2%, 31%)

CMYK39.2%, 25.3%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,160,911

CSS custom property--colour: #303B4F;

Brightness & contrast

Relative luminance0.04321WCAG 2.x, 0 is black and 1 is white

Perceived brightness58.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.27:1

Contrast with white11.27:1WCAG normal text: AAA

Contrast with black1.86:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#CFC4B0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#343C50no red cones; affects about 1% of men; ΔE 1.3 from the original

Deuteranopia#31394Fno green cones; the most common form, about 1% of men; ΔE 2 from the original

Tritanopia#263F42no blue cones; rare, and affects men and women equally; ΔE 13.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.27:1WCAG large text: AAA

Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.6 Dim grey · ΔE 24 Black · ΔE 28.2 Slate grey · ΔE 28.5 Light slate grey · ΔE 31.5 Gray · ΔE 32

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.57, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4F4430

Analogous#304A4F, #35304F

Triadic#4F303B, #3B4F30

Split complementary#4F3430, #4B4F30

Tetradic#4F304A, #4F4430, #304F35

Tints, shades & saturation

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

Lighter +40%#909FBB

Lighter +30%#7084A8

Lighter +20%#576A8E

Lighter +10%#43536F

Darker −10%#1D232F

Darker −20%#090C10

Darker −30%#000000

Darker −40%#000000

More saturated +25%#20365F

Less saturated −25%#404040

Channel breakdown

R48

G59

B79

Red48 (18.8%)

Green59 (23.1%)

Blue79 (31%)

Hue218.71°

Saturation (HSL)24.41%

Lightness24.9%

Dominant channelBlue

Hex per channelR 30 · G 3B · B 4F

Keep nerding

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

#303B4F

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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