CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 344 · 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.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 2 (b) 6 (c) 3 (d) 4
2. 2.🌈 Which colour is rgb(255, 255, 255)? (a) cyan (b) blue (c) black (d) white
3. 3.🌈 Which colour of light is strongest in rgb(22, 241, 139)? (a) blue (b) red (c) green
4. 4.🌈 Which colour of light is strongest in rgb(124, 172, 60)? (a) blue (b) red (c) green
5. 5.🌈 In #000054 the blue part is the hex number 54. What is it as a normal number?
6. 6.🌈 Which colour of light is strongest in rgb(132, 132, 167)? (a) red (b) green (c) blue
7. 7.🌈 Which hex code is red? (a) #00ff00 (b) #0000ff (c) #ff0000 (d) #ffff00
8. 8.🌈 In #rrggbb, which colour do the first two digits give? (a) blue (b) green (c) black (d) red
9. 9.🌈 In #rrggbb, which colour do the last two digits give? (a) white (b) green (c) blue (d) red
10. 10.🌈 Which colour is #00ffff? (a) black (b) white (c) blue (d) cyan
11. 11.🌈 In #000050 the blue part is the hex number 50. What is it as a normal number?
12. 12.🌈 In #0000f2 the blue part is the hex number f2. What is it as a normal number?
13. 13.🌈 Which colour of light is strongest in rgb(4, 192, 41)? (a) green (b) blue (c) red
14. 14.🌈 Which colour is rgb(0, 0, 0)? (a) cyan (b) yellow (c) white (d) black
15. 15.🌈 Which colour of light is strongest in rgb(77, 184, 136)? (a) red (b) blue (c) green
16. 16.🌈 What is the biggest number one colour can have in rgb()? (a) 100 (b) 1000 (c) 99 (d) 255
17. 17.🌈 Which hex code is blue? (a) #ffffff (b) #000000 (c) #00ffff (d) #0000ff
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 of light is strongest in rgb(8, 135, 215)? (a) green (b) red (c) blue
20. 20.🌈 Which colour is #ffff00? (a) red (b) white (c) yellow (d) bright green
21. 21.🌈 Which colour is #0000ff? (a) white (b) black (c) cyan (d) blue
22. 22.🌈 Which colour is rgb(0, 255, 255)? (a) black (b) red (c) blue (d) cyan
23. 23.🌈 Which colour of light is strongest in rgb(91, 205, 71)? (a) blue (b) red (c) green
24. 24.🌈 Which colour of light is strongest in rgb(45, 75, 230)? (a) green (b) red (c) blue
25. 25.🌈 In #000086 the blue part is the hex number 86. What is it as a normal number?
26. 26.🌈 Which colour is rgb(0, 0, 255)? (a) cyan (b) white (c) magenta (d) blue
27. 27.🌈 In #2b0000 the red part is the hex number 2b. What is it as a normal number?
28. 28.🌈 Which colour of light is strongest in rgb(84, 56, 158)? (a) blue (b) red (c) green
29. 29.🌈 Which colour of light is strongest in rgb(215, 75, 75)? (a) blue (b) green (c) red
30. 30.🌈 Which colour is rgb(255, 255, 0)? (a) white (b) black (c) blue (d) yellow
31. 31.🌈 Which colour is #00ff00? (a) black (b) yellow (c) magenta (d) bright green
32. 32.🌈 Which colour of light is strongest in rgb(130, 1, 170)? (a) red (b) blue (c) green
33. 33.🌈 In #a50000 the red part is the hex number a5. What is it as a normal number?
34. 34.🌈 Which colour of light is strongest in rgb(68, 84, 196)? (a) green (b) blue (c) red
35. 35.🌈 Which colour is rgb(255, 0, 255)? (a) red (b) magenta (c) bright green (d) cyan
36. 36.🌈 Which colour of light is strongest in rgb(71, 174, 70)? (a) blue (b) green (c) red
37. 37.🌈 Which colour of light is strongest in rgb(28, 20, 203)? (a) green (b) red (c) blue
38. 38.🌈 Which colour is #ff0000? (a) red (b) blue (c) black (d) white
39. 39.🌈 Which colour is #ff00ff? (a) blue (b) black (c) magenta (d) red
40. 40.🌈 Which colour is #ffffff? (a) magenta (b) black (c) white (d) blue

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