CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 184 · 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 of light is strongest in rgb(126, 233, 5)? (a) red (b) blue (c) green
2. 2.🌈 Which colour is rgb(255, 255, 255)? (a) yellow (b) bright green (c) red (d) white
3. 3.🌈 In #rrggbb, which colour do the first two digits give? (a) blue (b) green (c) red (d) black
4. 4.🌈 Which hex code is cyan? (a) #0000ff (b) #000000 (c) #00ffff (d) #ff00ff
5. 5.🌈 Which colour of light is strongest in rgb(100, 65, 169)? (a) blue (b) red (c) green
6. 6.🌈 Which colour is #00ffff? (a) magenta (b) yellow (c) cyan (d) bright green
7. 7.🌈 What is the biggest number one colour can have in rgb()? (a) 1000 (b) 99 (c) 255 (d) 100
8. 8.🌈 In #rrggbb, which colour do the last two digits give? (a) blue (b) green (c) white (d) red
9. 9.🌈 Which colour is rgb(255, 0, 255)? (a) white (b) red (c) black (d) magenta
10. 10.🌈 Which colour of light is strongest in rgb(123, 20, 172)? (a) green (b) blue (c) red
11. 11.🌈 Which colour of light is strongest in rgb(47, 119, 204)? (a) red (b) green (c) blue
12. 12.🌈 In #004500 the green part is the hex number 45. What is it as a normal number?
13. 13.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 4 (b) 2 (c) 3 (d) 6
14. 14.🌈 Which colour is rgb(0, 0, 255)? (a) yellow (b) black (c) blue (d) red
15. 15.🌈 Which colour is #ffff00? (a) bright green (b) white (c) yellow (d) blue
16. 16.🌈 Which colour of light is strongest in rgb(128, 102, 255)? (a) green (b) blue (c) red
17. 17.🌈 Which colour is #ffffff? (a) cyan (b) white (c) magenta (d) blue
18. 18.🌈 Hex digits go 0 to 9, then A to which letter? (a) Z (b) J (c) G (d) F
19. 19.🌈 Which colour is rgb(0, 255, 255)? (a) magenta (b) white (c) red (d) cyan
20. 20.🌈 In #000c00 the green part is the hex number 0c. What is it as a normal number?
21. 21.🌈 Which colour of light is strongest in rgb(97, 199, 51)? (a) red (b) blue (c) green
22. 22.🌈 In #400000 the red part is the hex number 40. What is it as a normal number?
23. 23.🌈 Which colour of light is strongest in rgb(251, 134, 45)? (a) green (b) red (c) blue
24. 24.🌈 In #c10000 the red part is the hex number c1. What is it as a normal number?
25. 25.🌈 Which colour is #ff0000? (a) yellow (b) black (c) magenta (d) red
26. 26.🌈 In #006000 the green part is the hex number 60. What is it as a normal number?
27. 27.🌈 Which colour of light is strongest in rgb(160, 122, 5)? (a) green (b) blue (c) red
28. 28.🌈 In #000029 the blue part is the hex number 29. What is it as a normal number?
29. 29.🌈 Which colour of light is strongest in rgb(164, 18, 33)? (a) green (b) red (c) blue
30. 30.🌈 Which hex code is black? (a) #0000ff (b) #000000 (c) #00ffff (d) #ffff00
31. 31.🌈 Which hex code is magenta? (a) #ff00ff (b) #000000 (c) #0000ff (d) #00ff00
32. 32.🌈 Which colour of light is strongest in rgb(123, 209, 9)? (a) red (b) green (c) blue
33. 33.🌈 Which colour is rgb(0, 255, 0)? (a) bright green (b) blue (c) red (d) cyan
34. 34.🌈 Which colour is #00ff00? (a) blue (b) magenta (c) bright green (d) red
35. 35.🌈 Which colour of light is strongest in rgb(158, 84, 110)? (a) red (b) blue (c) green
36. 36.🌈 Which colour is rgb(0, 0, 0)? (a) magenta (b) bright green (c) red (d) black
37. 37.🌈 Which colour of light is strongest in rgb(202, 130, 40)? (a) green (b) blue (c) red
38. 38.🌈 Which colour of light is strongest in rgb(108, 93, 218)? (a) green (b) blue (c) red
39. 39.🌈 Which colour of light is strongest in rgb(244, 116, 88)? (a) red (b) green (c) blue
40. 40.🌈 In #cc0000 the red part is the hex number cc. What is it as a normal number?

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