#387FCC#387FCC
#387FCC is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 58.9% C 0.138 H 252.8°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).
Color values
| HEX | #387FCC |
|---|---|
| RGB | rgb(56, 127, 204) |
| HSL | hsl(211, 59%, 51%) |
| HSV | hsv(211, 73%, 80%) |
| CMYK | cmyk(72.5%, 37.7%, 0%, 20%) |
| CIE-LAB | lab(52.26, 3.74, -46.27) |
| CIE-LCH | lch(52.26, 46.42, 274.62°) |
| OKLab | oklab(58.88% -0.0408 -0.1318) |
| OKLCH | oklch(58.88% 0.138 252.8) |
| XYZ | xyz(20.1153, 20.3769, 59.9880) |
| Luminance | 0.2038 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.87
Cool Blue
#4984B8
ΔE00 3.08
Steel Blue
#4682B4
ΔE00 3.27
Bluish
#2976BB
ΔE00 4.10
Cerulean (survey)
#0485D1
ΔE00 4.29
Off Blue
#5684AE
ΔE00 4.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#387FCC #CC8538
analogous
#38C9CC #387FCC #3B38CC
triadic
#387FCC #CC387F #7FCC38
tetradic
#387FCC #CC38C9 #CC8538 #38CC3B
square
#387FCC #CC38C9 #CC8538 #38CC3B
split-complementary
#387FCC #CC3B38 #C9CC38
monochromatic
#1C436E #29619E #387FCC #699ED8 #99BEE5
Accessibility & contrast
On white
4.14
#387FCC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.08
#387FCC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #387FCC
5.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##387FCC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##387FCC | 1.00 | 4.14 | 5.08 | 5.08 |
| #FFFFFF | 4.14 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.08 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.08 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B84CF
Deuteranopia (green-blind)
#4576CA
Tritanopia (blue-blind)
#00919C
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #387fcc; /* rgb */ color: rgb(56, 127, 204); /* oklch */ color: oklch(58.9% 0.138 252.8);
Tailwind
colors: {
custom: {
50: '#81a3dc',
500: '#387fcc',
950: '#000000',
},
}SCSS
$custom: #387fcc; $custom-light: #81a3dc; $custom-dark: #000000;
JSON
{
"hex": "#387fcc",
"rgb": {
"r": 56,
"g": 127,
"b": 204
},
"hsl": {
"h": 211.216,
"s": 59.2,
"l": 50.98
},
"oklch": {
"l": 0.58884,
"c": 0.13797,
"h": 252.8
},
"luminance": 0.20379
}Semantic roles & 50–950 ramp
primary
#387FCC
secondary
#D1B18F
accent
#9745E2
background
#F8FAFD
surface
#F0F3FB
border
#CBCDD4
text
#0C0F15
muted
#7D7F83