Colour

#283D49

#283D49
Blue
Dark
Nearest: Dark slate grey

#283D49 is a blue with RGB values 40, 61, 73 and HSL 202°, 29%, 22%. 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

#283D49#283D49

HEX#283D49

RGBrgb(40, 61, 73)

RGB (0–1)0.1569, 0.2392, 0.2863

RGB percentages15.7%, 23.9%, 28.6%

HSLhsl(201.8, 29.2%, 22.2%)

HSV / HSBhsv(201.8, 45.2%, 28.6%)

CMYK45.2%, 16.4%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,637,129

CSS custom property--colour: #283D49;

Brightness & contrast

Relative luminance0.0427WCAG 2.x, 0 is black and 1 is white

Perceived brightness57.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.33:1

Contrast with white11.33:1WCAG normal text: AAA

Contrast with black1.85:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#D7C2B6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#373C4Ano red cones; affects about 1% of men; ΔE 6.2 from the original

Deuteranopia#333949no green cones; the most common form, about 1% of men; ΔE 6.5 from the original

Tritanopia#1B4041no blue cones; rare, and affects men and women equally; ΔE 9.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.33:1WCAG large text: AAA

Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.6 Dim grey · ΔE 22.7 Black · ΔE 26.9 Slate grey · ΔE 28.4 Gray · ΔE 31 Light slate grey · ΔE 31.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.6, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#493428

Analogous#284944, #282D49

Triadic#49283D, #3D4928

Split complementary#49282D, #494528

Tetradic#442849, #493428, #2D4928

Tints, shades & saturation

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

Lighter +40%#82A6BB

Lighter +30%#618FA9

Lighter +20%#4C748B

Lighter +10%#3A596A

Darker −10%#162128

Darker −20%#040607

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1A4157

Less saturated −25%#36393B

Channel breakdown

R40

G61

B73

Red40 (15.7%)

Green61 (23.9%)

Blue73 (28.6%)

Hue201.82°

Saturation (HSL)29.2%

Lightness22.16%

Dominant channelBlue

Hex per channelR 28 · G 3D · B 49

Keep nerding

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

#283D49

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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