Colour

#284A74

#284A74
Blue
Dark
Nearest: Steel blue

#284A74 is a blue with RGB values 40, 74, 116 and HSL 213°, 49%, 31%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#284A74#284A74

HEX#284A74

RGBrgb(40, 74, 116)

RGB (0–1)0.1569, 0.2902, 0.4549

RGB percentages15.7%, 29%, 45.5%

HSLhsl(213.2, 48.7%, 30.6%)

HSV / HSBhsv(213.2, 65.5%, 45.5%)

CMYK65.5%, 36.2%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,640,500

CSS custom property--colour: #284A74;

Brightness & contrast

Relative luminance0.0661WCAG 2.x, 0 is black and 1 is white

Perceived brightness72.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.04:1

Contrast with white9.04:1WCAG normal text: AAA

Contrast with black2.32:1WCAG normal text: Fail

Greyscale equivalent#464646

Inverted#D7B58B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#384D76no red cones; affects about 1% of men; ΔE 3.6 from the original

Deuteranopia#2E4573no green cones; the most common form, about 1% of men; ΔE 4.7 from the original

Tritanopia#005459no blue cones; rare, and affects men and women equally; ΔE 28.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.04:1WCAG large text: AAA

Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Steel blue · ΔE 22.8 Dark slate grey · ΔE 27.7 Dark slateblue · ΔE 27.9 Slate grey · ΔE 28.2 Light slate grey · ΔE 30.4 Dim grey · ΔE 31

Nearest named CSS colourSteel blue (#4682B4)ΔE 22.85, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#745228

Analogous#287074, #2C2874

Triadic#74284A, #4A7428

Split complementary#742C28, #707428

Tetradic#742870, #745228, #28742C

Tints, shades & saturation

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

Lighter +40%#8FB0D9

Lighter +30%#6A95CB

Lighter +20%#447BBE

Lighter +10%#35629A

Darker −10%#1B324E

Darker −20%#0E1A28

Darker −30%#010102

Darker −40%#000000

More saturated +25%#154888

Less saturated −25%#3C4C61

Channel breakdown

R40

G74

B116

Red40 (15.7%)

Green74 (29%)

Blue116 (45.5%)

Hue213.16°

Saturation (HSL)48.72%

Lightness30.59%

Dominant channelBlue

Hex per channelR 28 · G 4A · B 74

Keep nerding

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

#284A74

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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