Color test

In this test the background color is the one in the title. In each box one of the primary colors varies from the background by the number shown, red (left), green (center) and blue (right). When the number is negative, the complementary colors appear, cyan, magenta and yellow.


red: 0
green: 255
blue: 255
-99
white
wrong
-86
slide
Perth
-75
shirt
cedar
-65
sheet
Idaho
-56
Italy
pupil
-49
speak
yodel
-42
habit
cloth
-36
shout
clamp
-31
rapid
rhino
-27
colon
hydra
-23
drink
Smith
-20
quart
union
-17
cloth
omega
-14
rival
never
-12
short
level
-10
merry
cough
-8
filly
water
-7
start
brown
-6
daily
agree
-5
float
along
-4
rapid
Clair
-3
proof
print
-2
every
broad
-1
carry
sheet
0
piece
alpha
shrub
1
slave
2
often
3
trial
4
woman
5
river
6
depth
7
denim
8
crowd
10
relay
12
verse
14
shape
17
beard
20
fence
23
Zorro
27
amuse
31
forge
36
lover
42
amigo
49
skill
56
brass
65
spare
75
think
86
sound
99
argue