#4381BB#4381BB
#4381BB is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.110 H 248.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).
Color values
| HEX | #4381BB |
|---|---|
| RGB | rgb(67, 129, 187) |
| HSL | hsl(209, 47%, 50%) |
| HSV | hsv(209, 64%, 73%) |
| CMYK | cmyk(64.2%, 31%, 0%, 26.7%) |
| CIE-LAB | lab(52.38, -1.70, -36.36) |
| CIE-LCH | lch(52.38, 36.40, 267.33°) |
| OKLab | oklab(58.8% -0.0398 -0.1027) |
| OKLCH | oklch(58.8% 0.11 248.8) |
| XYZ | xyz(19.1313, 20.4798, 49.9488) |
| Luminance | 0.2048 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 1.30
Cool Blue
#4984B8
ΔE00 1.31
Off Blue
#5684AE
ΔE00 2.94
Windows Blue
#3778BF
ΔE00 3.43
Dusty Blue
#5A86AD
ΔE00 3.80
Cerulean (survey)
#0485D1
ΔE00 3.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4381BB #BB7D43
analogous
#43BBB9 #4381BB #4345BB
triadic
#4381BB #BB4381 #81BB43
tetradic
#4381BB #B943BB #BB7D43 #45BB43
square
#4381BB #B943BB #BB7D43 #45BB43
split-complementary
#4381BB #BB4345 #BBB943
monochromatic
#234361 #33628E #4381BB #709FCC #9DBDDC
Accessibility & contrast
On white
4.12
#4381BB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.10
#4381BB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4381BB
5.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4381BB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4381BB | 1.00 | 4.12 | 5.10 | 5.10 |
| #FFFFFF | 4.12 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.10 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.10 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6883BE
Deuteranopia (green-blind)
#5778BA
Tritanopia (blue-blind)
#008F96
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #4381bb; /* rgb */ color: rgb(67, 129, 187); /* oklch */ color: oklch(58.8% 0.110 248.8);
Tailwind
colors: {
custom: {
50: '#83a5cf',
500: '#4381bb',
950: '#000000',
},
}SCSS
$custom: #4381bb; $custom-light: #83a5cf; $custom-dark: #000000;
JSON
{
"hex": "#4381bb",
"rgb": {
"r": 67,
"g": 129,
"b": 187
},
"hsl": {
"h": 209,
"s": 47.244,
"l": 49.804
},
"oklch": {
"l": 0.58803,
"c": 0.11016,
"h": 248.8
},
"luminance": 0.20482
}Semantic roles & 50–950 ramp
primary
#4381BB
secondary
#C8AC92
accent
#9251D7
background
#F8FAFC
surface
#F0F4F9
border
#CBCED2
text
#0C0F14
muted
#7D7F82