#539BCC#539BCC
#539BCC is a light, moderate cyan. Relative luminance 0.296; OKLCH L 66.3% C 0.103 H 240.5°. Best body text is #000000 at 6.93:1 contrast (WCAG AA passes).
Color values
| HEX | #539BCC |
|---|---|
| RGB | rgb(83, 155, 204) |
| HSL | hsl(204, 54%, 56%) |
| HSV | hsv(204, 59%, 80%) |
| CMYK | cmyk(59.3%, 24%, 0%, 20%) |
| CIE-LAB | lab(61.34, -8.03, -31.94) |
| CIE-LCH | lch(61.34, 32.93, 255.89°) |
| OKLab | oklab(66.3% -0.0507 -0.0895) |
| OKLCH | oklch(66.3% 0.103 240.5) |
| XYZ | xyz(26.1836, 29.6389, 61.4561) |
| Luminance | 0.2964 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Azure (survey)
#069AF3
ΔE00 4.98
Dark Sky Blue
#448EE4
ΔE00 6.44
Dodgerblue
#1E90FF
ΔE00 6.99
Faded Blue
#658CBB
ΔE00 7.23
Water Blue
#0E87CC
ΔE00 7.59
Dusty Blue
#5A86AD
ΔE00 7.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#539BCC #CC8453
analogous
#53CCC1 #539BCC #535FCC
triadic
#539BCC #CC539B #9BCC53
tetradic
#539BCC #C153CC #CC8453 #5FCC53
square
#539BCC #C153CC #CC8453 #5FCC53
split-complementary
#539BCC #CC535F #CCC153
monochromatic
#265B7F #347DAE #539BCC #82B6DA #B1D2E8
Accessibility & contrast
On white
3.03
#539BCC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.93
#539BCC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #539BCC
6.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##539BCC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##539BCC | 1.00 | 3.03 | 6.93 | 6.93 |
| #FFFFFF | 3.03 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.93 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.93 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#859BCE
Deuteranopia (green-blind)
#748FCB
Tritanopia (blue-blind)
#00A7AC
Achromatopsia (no color)
#949494
Design tokens & code
CSS
--color: #539bcc; /* rgb */ color: rgb(83, 155, 204); /* oklch */ color: oklch(66.3% 0.103 240.5);
Tailwind
colors: {
custom: {
50: '#8db8db',
500: '#539bcc',
950: '#000000',
},
}SCSS
$custom: #539bcc; $custom-light: #8db8db; $custom-dark: #000000;
JSON
{
"hex": "#539bcc",
"rgb": {
"r": 83,
"g": 155,
"b": 204
},
"hsl": {
"h": 204.298,
"s": 54.26,
"l": 56.275
},
"oklch": {
"l": 0.66302,
"c": 0.10287,
"h": 240.5
},
"luminance": 0.29641
}Semantic roles & 50–950 ramp
primary
#539BCC
secondary
#D6B9A4
accent
#864ADE
background
#F9FBFD
surface
#F1F6FB
border
#CBD0D4
text
#0D1115
muted
#7E8083