#387BB4#387BB4
#387BB4 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.6% C 0.112 H 247.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).
Color values
| HEX | #387BB4 |
|---|---|
| RGB | rgb(56, 123, 180) |
| HSL | hsl(208, 53%, 46%) |
| HSV | hsv(208, 69%, 71%) |
| CMYK | cmyk(68.9%, 31.7%, 0%, 29.4%) |
| CIE-LAB | lab(49.86, -2.44, -36.32) |
| CIE-LCH | lch(49.86, 36.40, 266.16°) |
| OKLab | oklab(56.6% -0.0434 -0.1028) |
| OKLCH | oklch(56.6% 0.112 247.1) |
| XYZ | xyz(16.9490, 18.3002, 45.8102) |
| Luminance | 0.1830 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Bluish
#2976BB
ΔE00 2.16
Windows Blue
#3778BF
ΔE00 2.35
Steel Blue
#4682B4
ΔE00 2.82
Flat Blue
#3C73A8
ΔE00 3.29
Cool Blue
#4984B8
ΔE00 3.57
Nice Blue
#107AB0
ΔE00 3.82
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#387BB4 #B47138
analogous
#38B4AF #387BB4 #383DB4
triadic
#387BB4 #B4387B #7BB438
tetradic
#387BB4 #AF38B4 #B47138 #3DB438
square
#387BB4 #AF38B4 #B47138 #3DB438
split-complementary
#387BB4 #B4383D #B4AF38
monochromatic
#1B3B57 #295B85 #387BB4 #5D99CD #8BB6DB
Accessibility & contrast
On white
4.51
#387BB4 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.66
#387BB4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #387BB4
4.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##387BB4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##387BB4 | 1.00 | 4.51 | 4.66 | 4.66 |
| #FFFFFF | 4.51 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.66 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.66 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#627DB6
Deuteranopia (green-blind)
#5071B3
Tritanopia (blue-blind)
#00898F
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #387bb4; /* rgb */ color: rgb(56, 123, 180); /* oklch */ color: oklch(56.6% 0.112 247.1);
Tailwind
colors: {
custom: {
50: '#7da0ca',
500: '#387bb4',
950: '#000000',
},
}SCSS
$custom: #387bb4; $custom-light: #7da0ca; $custom-dark: #000000;
JSON
{
"hex": "#387bb4",
"rgb": {
"r": 56,
"g": 123,
"b": 180
},
"hsl": {
"h": 207.581,
"s": 52.542,
"l": 46.275
},
"oklch": {
"l": 0.56597,
"c": 0.11157,
"h": 247.1
},
"luminance": 0.18302
}Semantic roles & 50–950 ramp
primary
#387BB4
secondary
#C5A182
accent
#8E4CDC
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0B0E13
muted
#7C7E82