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: 210
green: 105
blue: 30
-99
Mazda
chest
-86
Helga
worse
-75
Maria
Alamo
-65
penny
flour
-56
maybe
swipe
-49
widow
index
-42
wharf
worth
-36
strip
earth
-31
twist
stand
-27
spade
spoil
elbow
-23
prove
Spain
scene
-20
fence
swine
thing
-17
Tulsa
chalk
board
-14
shoot
creep
grand
-12
swift
bread
sweet
-10
quiet
guess
chalk
-8
spade
tower
women
-7
learn
speed
teach
-6
bribe
birch
skunk
-5
plaza
romeo
Felix
-4
flake
capon
Linux
-3
elbow
koala
proof
-2
trick
phone
metal
-1
lucky
flour
crack
0
wharf
along
Kenya
1
decay
eager
candy
2
guilt
hello
tooth
3
phone
quick
metal
4
human
drive
shade
5
Allen
amuse
money
6
colon
twice
pedal
7
block
filly
merry
8
drill
sight
youth
10
nylon
scold
Clyde
12
alone
Spain
ounce
14
spoon
skunk
bacon
17
flood
world
adios
20
Miami
never
mason
23
Rhine
hello
thief
27
depth
petal
youth
31
tenth
third
cruel
36
Nepal
skunk
sound
42
smell
knock
shirt
49
charm
brave
56
black
radio
65
point
place
75
ditch
flood
86
gypsy
Fargo
99
Kelly
blind