#387CD3#387CD3
#387CD3 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.6% C 0.150 H 255.9°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #387CD3 |
|---|---|
| RGB | rgb(56, 124, 211) |
| HSL | hsl(214, 64%, 52%) |
| HSV | hsv(214, 73%, 83%) |
| CMYK | cmyk(73.5%, 41.2%, 0%, 17.3%) |
| CIE-LAB | lab(51.79, 8.11, -50.99) |
| CIE-LCH | lch(51.79, 51.63, 279.04°) |
| OKLab | oklab(58.64% -0.0365 -0.1457) |
| OKLCH | oklch(58.64% 0.15 255.9) |
| XYZ | xyz(20.5921, 19.9569, 64.3822) |
| Luminance | 0.1996 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.73
Deep Sky Blue
#0D75F8
ΔE00 4.21
Azure
#007FFF
ΔE00 4.21
Cool Blue
#4984B8
ΔE00 4.29
Bluish
#2976BB
ΔE00 4.31
Clear Blue
#247AFD
ΔE00 4.43
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#387CD3 #D38F38
analogous
#38CAD3 #387CD3 #4138D3
triadic
#387CD3 #D3387C #7CD338
tetradic
#387CD3 #D338CA #D38F38 #38D341
square
#387CD3 #D338CA #D38F38 #38D341
split-complementary
#387CD3 #D34138 #CAD338
monochromatic
#1A4376 #255FA9 #387CD3 #6A9DDE #9CBEE9
Accessibility & contrast
On white
4.21
#387CD3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#387CD3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #387CD3
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##387CD3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##387CD3 | 1.00 | 4.21 | 4.99 | 4.99 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5283D6
Deuteranopia (green-blind)
#3875D1
Tritanopia (blue-blind)
#00909D
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #387cd3; /* rgb */ color: rgb(56, 124, 211); /* oklch */ color: oklch(58.6% 0.150 255.9);
Tailwind
colors: {
custom: {
50: '#82a1e1',
500: '#387cd3',
950: '#000000',
},
}SCSS
$custom: #387cd3; $custom-light: #82a1e1; $custom-dark: #000000;
JSON
{
"hex": "#387cd3",
"rgb": {
"r": 56,
"g": 124,
"b": 211
},
"hsl": {
"h": 213.677,
"s": 63.786,
"l": 52.353
},
"oklch": {
"l": 0.58642,
"c": 0.1502,
"h": 255.9
},
"luminance": 0.19959
}Semantic roles & 50–950 ramp
primary
#387CD3
secondary
#D5B892
accent
#9E41E7
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83