#4588B3#4588B3
#4588B3 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.1% C 0.095 H 239.2°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).
Color values
| HEX | #4588B3 |
|---|---|
| RGB | rgb(69, 136, 179) |
| HSL | hsl(203, 44%, 49%) |
| HSV | hsv(203, 61%, 70%) |
| CMYK | cmyk(61.5%, 24%, 0%, 29.8%) |
| CIE-LAB | lab(54.16, -8.07, -28.98) |
| CIE-LCH | lch(54.16, 30.08, 254.45°) |
| OKLab | oklab(60.11% -0.0485 -0.0813) |
| OKLCH | oklch(60.11% 0.095 239.2) |
| XYZ | xyz(19.3920, 22.1263, 45.8879) |
| Luminance | 0.2213 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 3.15
Cool Blue
#4984B8
ΔE00 3.22
Dusty Blue
#5A86AD
ΔE00 3.63
Off Blue
#5684AE
ΔE00 3.68
Water Blue
#0E87CC
ΔE00 4.16
Cerulean (survey)
#0485D1
ΔE00 4.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4588B3 #B37045
analogous
#45B3A7 #4588B3 #4551B3
triadic
#4588B3 #B34588 #88B345
tetradic
#4588B3 #A745B3 #B37045 #51B345
square
#4588B3 #A745B3 #B37045 #51B345
split-complementary
#4588B3 #B34551 #B3A745
monochromatic
#23455B #346687 #4588B3 #6EA4C7 #9AC0D8
Accessibility & contrast
On white
3.87
#4588B3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.43
#4588B3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4588B3
5.43:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4588B3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4588B3 | 1.00 | 3.87 | 5.43 | 5.43 |
| #FFFFFF | 3.87 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.43 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.43 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7488B5
Deuteranopia (green-blind)
#657DB2
Tritanopia (blue-blind)
#009397
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #4588b3; /* rgb */ color: rgb(69, 136, 179); /* oklch */ color: oklch(60.1% 0.095 239.2);
Tailwind
colors: {
custom: {
50: '#83aaca',
500: '#4588b3',
950: '#000000',
},
}SCSS
$custom: #4588b3; $custom-light: #83aaca; $custom-dark: #000000;
JSON
{
"hex": "#4588b3",
"rgb": {
"r": 69,
"g": 136,
"b": 179
},
"hsl": {
"h": 203.455,
"s": 44.355,
"l": 48.627
},
"oklch": {
"l": 0.60115,
"c": 0.09466,
"h": 239.2
},
"luminance": 0.22128
}Semantic roles & 50–950 ramp
primary
#4588B3
secondary
#C4A48F
accent
#8654D4
background
#F8FAFC
surface
#F0F4F8
border
#CBCED1
text
#0B1013
muted
#7C7F82