#166E88#166E88
#166E88 is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.2% C 0.087 H 223.4°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #166E88 |
|---|---|
| RGB | rgb(22, 110, 136) |
| HSL | hsl(194, 72%, 31%) |
| HSV | hsv(194, 84%, 53%) |
| CMYK | cmyk(83.8%, 19.1%, 0%, 46.7%) |
| CIE-LAB | lab(42.91, -15.17, -21.34) |
| CIE-LCH | lch(42.91, 26.18, 234.58°) |
| OKLab | oklab(50.16% -0.0633 -0.0599) |
| OKLCH | oklch(50.16% 0.087 223.4) |
| XYZ | xyz(10.3489, 13.0987, 25.2706) |
| Luminance | 0.1310 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 2.97
Ocean
#017B92
ΔE00 5.15
Ocean Blue (survey)
#03719C
ΔE00 5.63
Cerulean
#007BA7
ΔE00 7.16
Ugly Blue
#31668A
ΔE00 7.20
Peacock Blue
#016795
ΔE00 7.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#166E88 #883016
analogous
#168869 #166E88 #163588
triadic
#166E88 #88166E #6E8816
tetradic
#166E88 #691688 #883016 #358816
square
#166E88 #691688 #883016 #358816
split-complementary
#166E88 #881635 #886916
monochromatic
#05191F #0D4353 #166E88 #1F99BD #39B9DF
Accessibility & contrast
On white
5.80
#166E88 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#166E88 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #166E88
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##166E88 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##166E88 | 1.00 | 5.80 | 3.62 | 5.80 |
| #FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5F6B89
Deuteranopia (green-blind)
#506188
Tritanopia (blue-blind)
#007676
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #166e88; /* rgb */ color: rgb(22, 110, 136); /* oklch */ color: oklch(50.2% 0.087 223.4);
Tailwind
colors: {
custom: {
50: '#6997aa',
500: '#166e88',
950: '#000000',
},
}SCSS
$custom: #166e88; $custom-light: #6997aa; $custom-dark: #000000;
JSON
{
"hex": "#166e88",
"rgb": {
"r": 22,
"g": 110,
"b": 136
},
"hsl": {
"h": 193.684,
"s": 72.152,
"l": 30.98
},
"oklch": {
"l": 0.50157,
"c": 0.08716,
"h": 223.4
},
"luminance": 0.131
}Semantic roles & 50–950 ramp
primary
#166E88
secondary
#BC5B3E
accent
#6239EF
background
#F6F9FA
surface
#ECF2F4
border
#C7CCCE
text
#070D10
muted
#7A7E7F