CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 44 · 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(104, 129, 152)? (a) blue (b) green (c) red
2. 2.🌈 Which hex code is blue? (a) #00ffff (b) #0000ff (c) #ffff00 (d) #ff00ff
3. 3.🌈 Which colour is #00ff00? (a) bright green (b) white (c) blue (d) black
4. 4.🌈 Which colour of light is strongest in rgb(222, 33, 10)? (a) blue (b) green (c) red
5. 5.🌈 Which colour is rgb(0, 0, 0)? (a) black (b) cyan (c) bright green (d) white
6. 6.🌈 Which colour is rgb(255, 0, 255)? (a) red (b) magenta (c) cyan (d) yellow
7. 7.🌈 Which colour of light is strongest in rgb(55, 127, 196)? (a) green (b) red (c) blue
8. 8.🌈 Hex digits go 0 to 9, then A to which letter? (a) Z (b) F (c) G (d) J
9. 9.🌈 Which colour of light is strongest in rgb(235, 94, 75)? (a) blue (b) green (c) red
10. 10.🌈 Which colour of light is strongest in rgb(245, 49, 12)? (a) red (b) green (c) blue
11. 11.🌈 Which colour of light is strongest in rgb(24, 30, 189)? (a) red (b) green (c) blue
12. 12.🌈 Which colour of light is strongest in rgb(33, 68, 157)? (a) red (b) green (c) blue
13. 13.🌈 Which colour is #ffffff? (a) bright green (b) magenta (c) cyan (d) white
14. 14.🌈 Which colour is #ffff00? (a) white (b) bright green (c) yellow (d) magenta
15. 15.🌈 In #rrggbb, which colour do the first two digits give? (a) green (b) blue (c) red (d) black
16. 16.🌈 Which colour is #ff0000? (a) bright green (b) cyan (c) yellow (d) red
17. 17.🌈 Which colour is rgb(0, 255, 0)? (a) cyan (b) bright green (c) white (d) blue
18. 18.🌈 Which hex code is bright green? (a) #ffffff (b) #00ff00 (c) #000000 (d) #ff0000
19. 19.🌈 Which hex code is red? (a) #000000 (b) #ff0000 (c) #ffffff (d) #00ff00
20. 20.🌈 Which colour of light is strongest in rgb(109, 58, 255)? (a) blue (b) green (c) red
21. 21.🌈 Which colour is rgb(255, 0, 0)? (a) red (b) bright green (c) yellow (d) blue
22. 22.🌈 Which colour of light is strongest in rgb(50, 121, 158)? (a) red (b) blue (c) green
23. 23.🌈 Which colour of light is strongest in rgb(154, 90, 37)? (a) green (b) blue (c) red
24. 24.🌈 Which colour of light is strongest in rgb(110, 154, 6)? (a) red (b) blue (c) green
25. 25.🌈 Which colour is rgb(255, 255, 0)? (a) bright green (b) blue (c) black (d) yellow
26. 26.🌈 In #700000 the red part is the hex number 70. What is it as a normal number?
27. 27.🌈 Which colour is #ff00ff? (a) magenta (b) black (c) red (d) cyan
28. 28.🌈 Which colour of light is strongest in rgb(230, 135, 66)? (a) blue (b) green (c) red
29. 29.🌈 Which colour of light is strongest in rgb(136, 251, 71)? (a) red (b) green (c) blue
30. 30.🌈 Which colour of light is strongest in rgb(160, 115, 9)? (a) blue (b) green (c) red
31. 31.🌈 Which colour is rgb(0, 0, 255)? (a) black (b) blue (c) yellow (d) magenta
32. 32.🌈 In #00c100 the green part is the hex number c1. What is it as a normal number?
33. 33.🌈 In #00a300 the green part is the hex number a3. What is it as a normal number?
34. 34.🌈 In #rrggbb, which colour do the last two digits give? (a) green (b) red (c) blue (d) white
35. 35.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 6 (b) 2 (c) 4 (d) 3
36. 36.🌈 In #00003e the blue part is the hex number 3e. What is it as a normal number?
37. 37.🌈 Which colour of light is strongest in rgb(120, 189, 87)? (a) blue (b) green (c) red
38. 38.🌈 Which hex code is cyan? (a) #ffffff (b) #000000 (c) #0000ff (d) #00ffff
39. 39.🌈 Which colour is #00ffff? (a) yellow (b) white (c) bright green (d) cyan
40. 40.🌈 In #00006e the blue part is the hex number 6e. What is it as a normal number?

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