#166B8A#166B8A
#166B8A is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.5% C 0.090 H 228.5°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #166B8A |
|---|---|
| RGB | rgb(22, 107, 138) |
| HSL | hsl(196, 73%, 31%) |
| HSV | hsv(196, 84%, 54%) |
| CMYK | cmyk(84.1%, 22.5%, 0%, 45.9%) |
| CIE-LAB | lab(42.03, -12.73, -23.90) |
| CIE-LCH | lch(42.03, 27.08, 241.97°) |
| OKLab | oklab(49.48% -0.0596 -0.0672) |
| OKLCH | oklch(49.48% 0.09 228.5) |
| XYZ | xyz(10.1741, 12.5197, 25.9201) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 3.26
Ocean Blue (survey)
#03719C
ΔE00 4.01
Peacock Blue
#016795
ΔE00 4.92
Ugly Blue
#31668A
ΔE00 5.10
Cerulean
#007BA7
ΔE00 6.65
Ocean
#017B92
ΔE00 7.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#166B8A #8A3516
analogous
#168A6F #166B8A #16318A
triadic
#166B8A #8A166B #6B8A16
tetradic
#166B8A #6F168A #8A3516 #318A16
square
#166B8A #6F168A #8A3516 #318A16
split-complementary
#166B8A #8A1631 #8A6F16
monochromatic
#051920 #0E4255 #166B8A #1E94BF #3BB4E0
Accessibility & contrast
On white
5.99
#166B8A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#166B8A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #166B8A
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##166B8A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##166B8A | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B698C
Deuteranopia (green-blind)
#4C5E8A
Tritanopia (blue-blind)
#007475
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #166b8a; /* rgb */ color: rgb(22, 107, 138); /* oklch */ color: oklch(49.5% 0.090 228.5);
Tailwind
colors: {
custom: {
50: '#6995ac',
500: '#166b8a',
950: '#000000',
},
}SCSS
$custom: #166b8a; $custom-light: #6995ac; $custom-dark: #000000;
JSON
{
"hex": "#166b8a",
"rgb": {
"r": 22,
"g": 107,
"b": 138
},
"hsl": {
"h": 196.034,
"s": 72.5,
"l": 31.373
},
"oklch": {
"l": 0.49479,
"c": 0.08984,
"h": 228.5
},
"luminance": 0.12521
}Semantic roles & 50–950 ramp
primary
#166B8A
secondary
#BE603E
accent
#6939EF
background
#F6F9FA
surface
#ECF1F4
border
#C7CBCE
text
#070D10
muted
#7A7E7F