CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 151 · 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 #ff0000? (a) magenta (b) cyan (c) blue (d) red
2. 2.🌈 Which colour is #000000? (a) bright green (b) blue (c) black (d) red
3. 3.🌈 What is the biggest number one colour can have in rgb()? (a) 255 (b) 100 (c) 99 (d) 1000
4. 4.🌈 In #rrggbb, which colour do the last two digits give? (a) red (b) white (c) green (d) blue
5. 5.🌈 Which colour is rgb(255, 255, 0)? (a) cyan (b) magenta (c) blue (d) yellow
6. 6.🌈 Which colour is #00ffff? (a) magenta (b) blue (c) bright green (d) cyan
7. 7.🌈 Which colour of light is strongest in rgb(253, 124, 24)? (a) blue (b) red (c) green
8. 8.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 3 (b) 4 (c) 2 (d) 6
9. 9.🌈 Which colour is rgb(255, 0, 0)? (a) white (b) bright green (c) red (d) blue
10. 10.🌈 Which hex code is blue? (a) #000000 (b) #00ffff (c) #0000ff (d) #ffff00
11. 11.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) blue (c) black (d) green
12. 12.🌈 Which colour is rgb(0, 255, 255)? (a) cyan (b) magenta (c) red (d) white
13. 13.🌈 Which colour is #00ff00? (a) black (b) cyan (c) blue (d) bright green
14. 14.🌈 Which hex code is cyan? (a) #ff00ff (b) #00ffff (c) #ffff00 (d) #ff0000
15. 15.🌈 Which colour of light is strongest in rgb(11, 236, 139)? (a) blue (b) green (c) red
16. 16.🌈 Hex digits go 0 to 9, then A to which letter? (a) J (b) F (c) Z (d) G
17. 17.🌈 Which colour of light is strongest in rgb(178, 42, 44)? (a) blue (b) green (c) red
18. 18.🌈 Which colour is rgb(255, 0, 255)? (a) bright green (b) red (c) magenta (d) black
19. 19.🌈 Which colour of light is strongest in rgb(45, 30, 152)? (a) red (b) blue (c) green
20. 20.🌈 Which colour is rgb(255, 255, 255)? (a) black (b) white (c) yellow (d) cyan
21. 21.🌈 Which colour of light is strongest in rgb(175, 75, 33)? (a) blue (b) green (c) red
22. 22.🌈 In #ee0000 the red part is the hex number ee. What is it as a normal number?
23. 23.🌈 Which colour of light is strongest in rgb(134, 179, 79)? (a) blue (b) green (c) red
24. 24.🌈 In #00001c the blue part is the hex number 1c. What is it as a normal number?
25. 25.🌈 Which colour of light is strongest in rgb(150, 23, 117)? (a) green (b) blue (c) red
26. 26.🌈 Which colour of light is strongest in rgb(248, 114, 24)? (a) blue (b) red (c) green
27. 27.🌈 Which colour of light is strongest in rgb(203, 86, 122)? (a) blue (b) red (c) green
28. 28.🌈 Which colour is #ffff00? (a) yellow (b) bright green (c) cyan (d) white
29. 29.🌈 Which colour of light is strongest in rgb(112, 55, 224)? (a) blue (b) green (c) red
30. 30.🌈 Which colour of light is strongest in rgb(26, 230, 63)? (a) red (b) green (c) blue
31. 31.🌈 Which colour is rgb(0, 0, 0)? (a) black (b) yellow (c) blue (d) white
32. 32.🌈 Which colour is #ff00ff? (a) white (b) black (c) magenta (d) cyan
33. 33.🌈 Which hex code is red? (a) #00ffff (b) #000000 (c) #ff0000 (d) #ffffff
34. 34.🌈 In #00f200 the green part is the hex number f2. What is it as a normal number?
35. 35.🌈 Which colour of light is strongest in rgb(234, 121, 115)? (a) blue (b) green (c) red
36. 36.🌈 Which colour is #0000ff? (a) blue (b) yellow (c) cyan (d) red
37. 37.🌈 Which hex code is bright green? (a) #00ff00 (b) #0000ff (c) #000000 (d) #00ffff
38. 38.🌈 In #710000 the red part is the hex number 71. What is it as a normal number?
39. 39.🌈 Which colour of light is strongest in rgb(83, 113, 151)? (a) green (b) blue (c) red
40. 40.🌈 Which colour of light is strongest in rgb(254, 117, 77)? (a) green (b) blue (c) red

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