CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 312 · 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 #ffffff? (a) white (b) black (c) cyan (d) red
2. 2.🌈 Which hex code is red? (a) #ff0000 (b) #ffffff (c) #00ff00 (d) #ffff00
3. 3.🌈 Which colour is #ff0000? (a) bright green (b) blue (c) red (d) black
4. 4.🌈 In #rrggbb, which colour do the first two digits give? (a) green (b) red (c) black (d) blue
5. 5.🌈 In #00d200 the green part is the hex number d2. What is it as a normal number?
6. 6.🌈 In #00a300 the green part is the hex number a3. What is it as a normal number?
7. 7.🌈 In #a50000 the red part is the hex number a5. What is it as a normal number?
8. 8.🌈 In #rrggbb, which colour do the last two digits give? (a) green (b) blue (c) red (d) white
9. 9.🌈 Which colour of light is strongest in rgb(21, 13, 178)? (a) red (b) green (c) blue
10. 10.🌈 Which colour is rgb(0, 255, 0)? (a) blue (b) red (c) bright green (d) black
11. 11.🌈 Which colour is rgb(255, 0, 0)? (a) cyan (b) bright green (c) blue (d) red
12. 12.🌈 In #005c00 the green part is the hex number 5c. What is it as a normal number?
13. 13.🌈 Which hex code is black? (a) #ffffff (b) #0000ff (c) #ff00ff (d) #000000
14. 14.🌈 Which colour is #0000ff? (a) cyan (b) black (c) blue (d) red
15. 15.🌈 Which colour is #00ffff? (a) cyan (b) blue (c) bright green (d) black
16. 16.🌈 In #ee0000 the red part is the hex number ee. What is it as a normal number?
17. 17.🌈 Which colour of light is strongest in rgb(61, 70, 198)? (a) red (b) green (c) blue
18. 18.🌈 In #360000 the red part is the hex number 36. What is it as a normal number?
19. 19.🌈 What is the biggest number one colour can have in rgb()? (a) 1000 (b) 100 (c) 255 (d) 99
20. 20.🌈 Which colour is rgb(255, 0, 255)? (a) cyan (b) white (c) bright green (d) magenta
21. 21.🌈 Hex digits go 0 to 9, then A to which letter? (a) G (b) J (c) Z (d) F
22. 22.🌈 In #9b0000 the red part is the hex number 9b. What is it as a normal number?
23. 23.🌈 Which colour of light is strongest in rgb(169, 135, 113)? (a) green (b) blue (c) red
24. 24.🌈 Which colour of light is strongest in rgb(247, 96, 118)? (a) blue (b) green (c) red
25. 25.🌈 Which colour is rgb(0, 0, 255)? (a) bright green (b) cyan (c) blue (d) magenta
26. 26.🌈 Which hex code is white? (a) #000000 (b) #0000ff (c) #ff0000 (d) #ffffff
27. 27.🌈 In #f80000 the red part is the hex number f8. What is it as a normal number?
28. 28.🌈 Which hex code is magenta? (a) #ffffff (b) #ff00ff (c) #00ffff (d) #00ff00
29. 29.🌈 Which colour is rgb(0, 0, 0)? (a) black (b) white (c) bright green (d) cyan
30. 30.🌈 Which colour is #ff00ff? (a) magenta (b) cyan (c) bright green (d) yellow
31. 31.🌈 In #f10000 the red part is the hex number f1. What is it as a normal number?
32. 32.🌈 Which colour of light is strongest in rgb(244, 71, 38)? (a) blue (b) green (c) red
33. 33.🌈 In #000c00 the green part is the hex number 0c. What is it as a normal number?
34. 34.🌈 Which colour is rgb(0, 255, 255)? (a) magenta (b) cyan (c) bright green (d) red
35. 35.🌈 Which colour of light is strongest in rgb(123, 48, 173)? (a) blue (b) green (c) red
36. 36.🌈 Which colour is rgb(255, 255, 255)? (a) magenta (b) red (c) white (d) bright green
37. 37.🌈 In #280000 the red part is the hex number 28. What is it as a normal number?
38. 38.🌈 Which colour of light is strongest in rgb(99, 180, 104)? (a) blue (b) green (c) red
39. 39.🌈 Which hex code is yellow? (a) #ffffff (b) #ffff00 (c) #ff0000 (d) #00ff00
40. 40.🌈 Which colour of light is strongest in rgb(154, 67, 75)? (a) blue (b) green (c) red

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