#4388CB#4388CB
#4388CB is a mid, vivid cyan. Relative luminance 0.231; OKLCH L 61.3% C 0.124 H 249.9°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).
Color values
| HEX | #4388CB |
|---|---|
| RGB | rgb(67, 136, 203) |
| HSL | hsl(210, 57%, 53%) |
| HSV | hsv(210, 67%, 80%) |
| CMYK | cmyk(67%, 33%, 0%, 20.4%) |
| CIE-LAB | lab(55.19, -0.34, -41.05) |
| CIE-LCH | lch(55.19, 41.05, 269.53°) |
| OKLab | oklab(61.27% -0.0424 -0.1163) |
| OKLCH | oklch(61.27% 0.124 249.9) |
| XYZ | xyz(21.8944, 23.1111, 59.7954) |
| Luminance | 0.2311 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cool Blue
#4984B8
ΔE00 2.52
Dark Sky Blue
#448EE4
ΔE00 3.30
Steel Blue
#4682B4
ΔE00 3.37
Cerulean (survey)
#0485D1
ΔE00 3.45
Water Blue
#0E87CC
ΔE00 3.91
Off Blue
#5684AE
ΔE00 4.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4388CB #CB8643
analogous
#43CBCA #4388CB #4344CB
triadic
#4388CB #CB4388 #88CB43
tetradic
#4388CB #CA43CB #CB8643 #44CB43
square
#4388CB #CA43CB #CB8643 #44CB43
split-complementary
#4388CB #CB4344 #CBCA43
monochromatic
#204A74 #2D69A4 #4388CB #73A6D8 #A3C5E6
Accessibility & contrast
On white
3.73
#4388CB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.62
#4388CB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4388CB
5.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4388CB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4388CB | 1.00 | 3.73 | 5.62 | 5.62 |
| #FFFFFF | 3.73 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6A8BCE
Deuteranopia (green-blind)
#577ECA
Tritanopia (blue-blind)
#0098A0
Achromatopsia (no color)
#848484
Design tokens & code
CSS
--color: #4388cb; /* rgb */ color: rgb(67, 136, 203); /* oklch */ color: oklch(61.3% 0.124 249.9);
Tailwind
colors: {
custom: {
50: '#85aadb',
500: '#4388cb',
950: '#000000',
},
}SCSS
$custom: #4388cb; $custom-light: #85aadb; $custom-dark: #000000;
JSON
{
"hex": "#4388cb",
"rgb": {
"r": 67,
"g": 136,
"b": 203
},
"hsl": {
"h": 209.559,
"s": 56.667,
"l": 52.941
},
"oklch": {
"l": 0.61265,
"c": 0.12378,
"h": 249.9
},
"luminance": 0.23113
}Semantic roles & 50–950 ramp
primary
#4388CB
secondary
#D2B498
accent
#9348E0
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83