#3B87CF#3B87CF
#3B87CF is a mid, vivid cyan. Relative luminance 0.228; OKLCH L 61.0% C 0.133 H 249.9°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).
Color values
| HEX | #3B87CF |
|---|---|
| RGB | rgb(59, 135, 207) |
| HSL | hsl(209, 61%, 52%) |
| HSV | hsv(209, 71%, 81%) |
| CMYK | cmyk(71.5%, 34.8%, 0%, 18.8%) |
| CIE-LAB | lab(54.82, 0.44, -43.90) |
| CIE-LCH | lch(54.82, 43.90, 270.57°) |
| OKLab | oklab(60.97% -0.0456 -0.1247) |
| OKLCH | oklch(60.97% 0.133 249.9) |
| XYZ | xyz(21.7259, 22.7603, 62.2676) |
| Luminance | 0.2276 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cool Blue
#4984B8
ΔE00 2.75
Cerulean (survey)
#0485D1
ΔE00 2.94
Steel Blue
#4682B4
ΔE00 3.47
Dark Sky Blue
#448EE4
ΔE00 3.48
Water Blue
#0E87CC
ΔE00 3.58
Off Blue
#5684AE
ΔE00 4.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B87CF #CF833B
analogous
#3BCFCD #3B87CF #3B3DCF
triadic
#3B87CF #CF3B87 #87CF3B
tetradic
#3B87CF #CD3BCF #CF833B #3DCF3B
square
#3B87CF #CD3BCF #CF833B #3DCF3B
split-complementary
#3B87CF #CF3B3D #CFCD3B
monochromatic
#1C4973 #2868A5 #3B87CF #6CA5DB #9DC3E7
Accessibility & contrast
On white
3.78
#3B87CF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.55
#3B87CF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3B87CF
5.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B87CF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3B87CF | 1.00 | 3.78 | 5.55 | 5.55 |
| #FFFFFF | 3.78 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.55 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.55 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#668BD2
Deuteranopia (green-blind)
#517DCE
Tritanopia (blue-blind)
#0098A1
Achromatopsia (no color)
#838383
Design tokens & code
CSS
--color: #3b87cf; /* rgb */ color: rgb(59, 135, 207); /* oklch */ color: oklch(61.0% 0.133 249.9);
Tailwind
colors: {
custom: {
50: '#83a9de',
500: '#3b87cf',
950: '#000000',
},
}SCSS
$custom: #3b87cf; $custom-light: #83a9de; $custom-dark: #000000;
JSON
{
"hex": "#3b87cf",
"rgb": {
"r": 59,
"g": 135,
"b": 207
},
"hsl": {
"h": 209.189,
"s": 60.656,
"l": 52.157
},
"oklch": {
"l": 0.6097,
"c": 0.1328,
"h": 249.9
},
"luminance": 0.22763
}Semantic roles & 50–950 ramp
primary
#3B87CF
secondary
#D3B293
accent
#9244E4
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83