#539BBA#539BBA
#539BBA is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.5% C 0.086 H 228.2°. Best body text is #000000 at 6.77:1 contrast (WCAG AA passes).
Color values
| HEX | #539BBA |
|---|---|
| RGB | rgb(83, 155, 186) |
| HSL | hsl(198, 43%, 53%) |
| HSV | hsv(198, 55%, 73%) |
| CMYK | cmyk(55.4%, 16.7%, 0%, 27.1%) |
| CIE-LAB | lab(60.63, -13.61, -22.94) |
| CIE-LCH | lch(60.63, 26.67, 239.32°) |
| OKLab | oklab(65.5% -0.0571 -0.0638) |
| OKLCH | oklch(65.5% 0.086 228.2) |
| XYZ | xyz(24.1482, 28.8247, 50.7360) |
| Luminance | 0.2883 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Greyblue
#77A1B5
ΔE00 5.48
Bluegrey
#85A3B2
ΔE00 8.40
Dirty Blue
#3F829D
ΔE00 8.85
Dusty Blue
#5A86AD
ΔE00 9.16
Blue Grey
#758DA3
ΔE00 9.41
Bluey Grey
#89A0B0
ΔE00 9.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#539BBA #BA7253
analogous
#53BAA5 #539BBA #5367BA
triadic
#539BBA #BA539B #9BBA53
tetradic
#539BBA #A553BA #BA7253 #67BA53
square
#539BBA #A553BA #BA7253 #67BA53
split-complementary
#539BBA #BA5367 #BAA553
monochromatic
#2A5669 #3B7A94 #539BBA #7FB4CC #AACEDD
Accessibility & contrast
On white
3.10
#539BBA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.77
#539BBA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #539BBA
6.77:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##539BBA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##539BBA | 1.00 | 3.10 | 6.77 | 6.77 |
| #FFFFFF | 3.10 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.77 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.77 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8B99BC
Deuteranopia (green-blind)
#7C8DBA
Tritanopia (blue-blind)
#00A4A5
Achromatopsia (no color)
#929292
Design tokens & code
CSS
--color: #539bba; /* rgb */ color: rgb(83, 155, 186); /* oklch */ color: oklch(65.5% 0.086 228.2);
Tailwind
colors: {
custom: {
50: '#8bb8ce',
500: '#539bba',
950: '#000000',
},
}SCSS
$custom: #539bba; $custom-light: #8bb8ce; $custom-dark: #000000;
JSON
{
"hex": "#539bba",
"rgb": {
"r": 83,
"g": 155,
"b": 186
},
"hsl": {
"h": 198.058,
"s": 42.739,
"l": 52.745
},
"oklch": {
"l": 0.65498,
"c": 0.08559,
"h": 228.2
},
"luminance": 0.28827
}Semantic roles & 50–950 ramp
primary
#539BBA
secondary
#CBAC9E
accent
#7B55D3
background
#F8FBFC
surface
#F0F6F9
border
#CBD0D2
text
#0D1113
muted
#7D8082