#559BBC#559BBC
#559BBC is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.7% C 0.086 H 230.4°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).
Color values
| HEX | #559BBC |
|---|---|
| RGB | rgb(85, 155, 188) |
| HSL | hsl(199, 43%, 54%) |
| HSV | hsv(199, 55%, 74%) |
| CMYK | cmyk(54.8%, 17.6%, 0%, 26.3%) |
| CIE-LAB | lab(60.78, -12.58, -23.82) |
| CIE-LCH | lch(60.78, 26.93, 242.16°) |
| OKLab | oklab(65.67% -0.0548 -0.0663) |
| OKLCH | oklch(65.67% 0.086 230.4) |
| XYZ | xyz(24.5413, 29.0027, 51.8720) |
| Luminance | 0.2900 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Greyblue
#77A1B5
ΔE00 5.48
Bluegrey
#85A3B2
ΔE00 8.34
Dusty Blue
#5A86AD
ΔE00 8.67
Dirty Blue
#3F829D
ΔE00 9.05
Blue Grey
#758DA3
ΔE00 9.06
Bluey Grey
#89A0B0
ΔE00 9.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#559BBC #BC7655
analogous
#55BCA9 #559BBC #5567BC
triadic
#559BBC #BC559B #9BBC55
tetradic
#559BBC #A955BC #BC7655 #67BC55
square
#559BBC #A955BC #BC7655 #67BC55
split-complementary
#559BBC #BC5567 #BCA955
monochromatic
#2B576C #3C7A98 #559BBC #81B5CD #ADCFDF
Accessibility & contrast
On white
3.09
#559BBC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.80
#559BBC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #559BBC
6.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##559BBC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##559BBC | 1.00 | 3.09 | 6.80 | 6.80 |
| #FFFFFF | 3.09 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.80 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.80 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8A99BE
Deuteranopia (green-blind)
#7C8EBC
Tritanopia (blue-blind)
#00A4A6
Achromatopsia (no color)
#939393
Design tokens & code
CSS
--color: #559bbc; /* rgb */ color: rgb(85, 155, 188); /* oklch */ color: oklch(65.7% 0.086 230.4);
Tailwind
colors: {
custom: {
50: '#8cb8d0',
500: '#559bbc',
950: '#000000',
},
}SCSS
$custom: #559bbc; $custom-light: #8cb8d0; $custom-dark: #000000;
JSON
{
"hex": "#559bbc",
"rgb": {
"r": 85,
"g": 155,
"b": 188
},
"hsl": {
"h": 199.223,
"s": 43.46,
"l": 53.529
},
"oklch": {
"l": 0.65671,
"c": 0.086,
"h": 230.4
},
"luminance": 0.29005
}Semantic roles & 50–950 ramp
primary
#559BBC
secondary
#CCAEA0
accent
#7D55D3
background
#F9FBFC
surface
#F1F6F9
border
#CBD0D2
text
#0D1114
muted
#7E8082