CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 245 · 40 questions

Code tip (Red, green, blue): rgb(red, green, blue): each from 0 to 255. #rrggbb: the same three numbers in hex. Hex digits: 0–9, then a = 10, b = 11, c = 12, d = 13, e = 14, f = 15. A pair = 16 × first digit + second digit: ff = 16 × 15 + 15 = 255.

1. 1.🌈 Which colour is #000000? (a) magenta (b) cyan (c) bright green (d) black
2. 2.🌈 What is the biggest number one colour can have in rgb()? (a) 100 (b) 99 (c) 255 (d) 1000
3. 3.🌈 In #00c000 the green part is the hex number c0. What is it as a normal number?
4. 4.🌈 Which colour is #ffff00? (a) yellow (b) blue (c) black (d) magenta
5. 5.🌈 Which hex code is cyan? (a) #ff00ff (b) #00ffff (c) #ffff00 (d) #ffffff
6. 6.🌈 Which colour is rgb(255, 255, 0)? (a) magenta (b) black (c) white (d) yellow
7. 7.🌈 In #rrggbb, which colour do the last two digits give? (a) white (b) red (c) blue (d) green
8. 8.🌈 Which colour of light is strongest in rgb(204, 10, 0)? (a) green (b) red (c) blue
9. 9.🌈 In #0000f0 the blue part is the hex number f0. What is it as a normal number?
10. 10.🌈 Which colour is #ffffff? (a) blue (b) white (c) bright green (d) magenta
11. 11.🌈 Which colour of light is strongest in rgb(102, 185, 129)? (a) red (b) green (c) blue
12. 12.🌈 Hex digits go 0 to 9, then A to which letter? (a) F (b) J (c) G (d) Z
13. 13.🌈 Which colour of light is strongest in rgb(192, 6, 86)? (a) red (b) blue (c) green
14. 14.🌈 In #0000fe the blue part is the hex number fe. What is it as a normal number?
15. 15.🌈 Which hex code is white? (a) #00ffff (b) #ff0000 (c) #000000 (d) #ffffff
16. 16.🌈 In #9b0000 the red part is the hex number 9b. What is it as a normal number?
17. 17.🌈 Which colour is rgb(0, 0, 0)? (a) white (b) black (c) bright green (d) yellow
18. 18.🌈 Which colour is rgb(255, 0, 0)? (a) yellow (b) magenta (c) red (d) bright green
19. 19.🌈 Which colour is #00ff00? (a) red (b) black (c) yellow (d) bright green
20. 20.🌈 Which colour of light is strongest in rgb(51, 132, 177)? (a) red (b) green (c) blue
21. 21.🌈 Which hex code is black? (a) #ff0000 (b) #0000ff (c) #000000 (d) #ffffff
22. 22.🌈 Which colour of light is strongest in rgb(231, 128, 0)? (a) red (b) blue (c) green
23. 23.🌈 Which colour is rgb(0, 255, 255)? (a) black (b) cyan (c) blue (d) magenta
24. 24.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 2 (b) 3 (c) 4 (d) 6
25. 25.🌈 Which colour of light is strongest in rgb(102, 140, 160)? (a) green (b) red (c) blue
26. 26.🌈 Which hex code is red? (a) #ffff00 (b) #0000ff (c) #ff0000 (d) #ff00ff
27. 27.🌈 Which colour of light is strongest in rgb(194, 14, 30)? (a) green (b) blue (c) red
28. 28.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) blue (c) green (d) black
29. 29.🌈 Which colour is rgb(0, 0, 255)? (a) red (b) cyan (c) blue (d) white
30. 30.🌈 In #00005e the blue part is the hex number 5e. What is it as a normal number?
31. 31.🌈 Which colour of light is strongest in rgb(219, 61, 74)? (a) red (b) green (c) blue
32. 32.🌈 Which colour is rgb(0, 255, 0)? (a) red (b) cyan (c) bright green (d) white
33. 33.🌈 Which colour of light is strongest in rgb(184, 111, 109)? (a) green (b) blue (c) red
34. 34.🌈 In #0000f1 the blue part is the hex number f1. What is it as a normal number?
35. 35.🌈 Which colour is #ff0000? (a) yellow (b) blue (c) red (d) bright green
36. 36.🌈 In #0000a9 the blue part is the hex number a9. What is it as a normal number?
37. 37.🌈 In #0000b7 the blue part is the hex number b7. What is it as a normal number?
38. 38.🌈 Which colour of light is strongest in rgb(11, 244, 115)? (a) blue (b) red (c) green
39. 39.🌈 Which colour is #00ffff? (a) yellow (b) cyan (c) magenta (d) white
40. 40.🌈 Which colour of light is strongest in rgb(119, 173, 38)? (a) blue (b) green (c) red

Free html and css lessons, practice and worksheets at talentjr.in/html-css-for-kids