Colour

#33647E

#33647E
Blue
Dark
Nearest: Slate grey

#33647E is a blue with RGB values 51, 100, 126 and HSL 201°, 42%, 35%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#33647E#33647E

HEX#33647E

RGBrgb(51, 100, 126)

RGB (0–1)0.2, 0.3922, 0.4941

RGB percentages20%, 39.2%, 49.4%

HSLhsl(200.8, 42.4%, 34.7%)

HSV / HSBhsv(200.8, 59.5%, 49.4%)

CMYK59.5%, 20.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,368,062

CSS custom property--colour: #33647E;

Brightness & contrast

Relative luminance0.11325WCAG 2.x, 0 is black and 1 is white

Perceived brightness92 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.43:1

Contrast with white6.43:1WCAG normal text: AA

Contrast with black3.26:1WCAG normal text: Fail

Greyscale equivalent#5B5B5B

Inverted#CC9B81

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#57637Fno red cones; affects about 1% of men; ΔE 11.3 from the original

Deuteranopia#4D5B7Eno green cones; the most common form, about 1% of men; ΔE 12.6 from the original

Tritanopia#006B6Dno blue cones; rare, and affects men and women equally; ΔE 19.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.43:1WCAG large text: AAA

Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Slate grey · ΔE 16.8 Steel blue · ΔE 18.2 Dark slate grey · ΔE 18.4 Light slate grey · ΔE 18.9 Dim grey · ΔE 21.7 Teal · ΔE 24.7

Nearest named CSS colourSlate grey (#708090)ΔE 16.75, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7E4D33

Analogous#337E72, #333F7E

Triadic#7E3364, #647E33

Split complementary#7E333F, #7E7333

Tetradic#72337E, #7E4D33, #3E7E33

Tints, shades & saturation

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

Lighter +40%#A3C7DA

Lighter +30%#7FB1CB

Lighter +20%#5B9BBC

Lighter +10%#4281A2

Darker −10%#24475A

Darker −20%#162A35

Darker −30%#070E11

Darker −40%#000000

More saturated +25%#1D6B94

Less saturated −25%#495D68

Channel breakdown

R51

G100

B126

Red51 (20%)

Green100 (39.2%)

Blue126 (49.4%)

Hue200.8°

Saturation (HSL)42.37%

Lightness34.71%

Dominant channelBlue

Hex per channelR 33 · G 64 · B 7E

Keep nerding

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#33647E

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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