#4581BC#4581BC
#4581BC is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.9% C 0.110 H 249.9°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).
Color values
| HEX | #4581BC |
|---|---|
| RGB | rgb(69, 129, 188) |
| HSL | hsl(210, 47%, 50%) |
| HSV | hsv(210, 63%, 74%) |
| CMYK | cmyk(63.3%, 31.4%, 0%, 26.3%) |
| CIE-LAB | lab(52.50, -0.99, -36.73) |
| CIE-LCH | lch(52.50, 36.74, 268.45°) |
| OKLab | oklab(58.94% -0.038 -0.1037) |
| OKLCH | oklch(58.94% 0.11 249.9) |
| XYZ | xyz(19.3783, 20.5947, 50.5211) |
| Luminance | 0.2060 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cool Blue
#4984B8
ΔE00 1.44
Steel Blue
#4682B4
ΔE00 1.60
Off Blue
#5684AE
ΔE00 2.88
Windows Blue
#3778BF
ΔE00 3.37
Dusty Blue
#5A86AD
ΔE00 3.74
Cerulean (survey)
#0485D1
ΔE00 4.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4581BC #BC8045
analogous
#45BCBC #4581BC #4545BC
triadic
#4581BC #BC4581 #81BC45
tetradic
#4581BC #BC45BC #BC8045 #45BC45
square
#4581BC #BC45BC #BC8045 #45BC45
split-complementary
#4581BC #BC4545 #BCBC45
monochromatic
#244463 #346290 #4581BC #729FCC #9FBEDC
Accessibility & contrast
On white
4.10
#4581BC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.12
#4581BC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4581BC
5.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4581BC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4581BC | 1.00 | 4.10 | 5.12 | 5.12 |
| #FFFFFF | 4.10 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.12 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.12 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6884BF
Deuteranopia (green-blind)
#5778BB
Tritanopia (blue-blind)
#008F96
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #4581bc; /* rgb */ color: rgb(69, 129, 188); /* oklch */ color: oklch(58.9% 0.110 249.9);
Tailwind
colors: {
custom: {
50: '#84a5d0',
500: '#4581bc',
950: '#000000',
},
}SCSS
$custom: #4581bc; $custom-light: #84a5d0; $custom-dark: #000000;
JSON
{
"hex": "#4581bc",
"rgb": {
"r": 69,
"g": 129,
"b": 188
},
"hsl": {
"h": 209.748,
"s": 47.036,
"l": 50.392
},
"oklch": {
"l": 0.58941,
"c": 0.11049,
"h": 249.9
},
"luminance": 0.20597
}Semantic roles & 50–950 ramp
primary
#4581BC
secondary
#C9AE94
accent
#9351D7
background
#F8FAFC
surface
#F0F4F9
border
#CBCED2
text
#0C0F14
muted
#7D7F82