#4591CF#4591CF
#4591CF is a light, vivid cyan. Relative luminance 0.260; OKLCH L 63.6% C 0.120 H 245.9°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).
Color values
| HEX | #4591CF |
|---|---|
| RGB | rgb(69, 145, 207) |
| HSL | hsl(207, 59%, 54%) |
| HSV | hsv(207, 67%, 81%) |
| CMYK | cmyk(66.7%, 30%, 0%, 18.8%) |
| CIE-LAB | lab(58.05, -3.88, -38.79) |
| CIE-LCH | lch(58.05, 38.98, 264.28°) |
| OKLab | oklab(63.6% -0.049 -0.1096) |
| OKLCH | oklch(63.6% 0.12 245.9) |
| XYZ | xyz(23.8379, 26.0185, 62.7852) |
| Luminance | 0.2602 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Sky Blue
#448EE4
ΔE00 3.45
Azure (survey)
#069AF3
ΔE00 4.41
Water Blue
#0E87CC
ΔE00 4.43
Dodgerblue
#1E90FF
ΔE00 4.55
Cerulean (survey)
#0485D1
ΔE00 4.76
Cool Blue
#4984B8
ΔE00 4.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4591CF #CF8345
analogous
#45CFC8 #4591CF #454CCF
triadic
#4591CF #CF4591 #91CF45
tetradic
#4591CF #C845CF #CF8345 #4CCF45
square
#4591CF #C845CF #CF8345 #4CCF45
split-complementary
#4591CF #CF454C #CFC845
monochromatic
#20517A #2C72AB #4591CF #76AEDC #A6CBE8
Accessibility & contrast
On white
3.38
#4591CF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.20
#4591CF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4591CF
6.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4591CF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4591CF | 1.00 | 3.38 | 6.20 | 6.20 |
| #FFFFFF | 3.38 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.20 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.20 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7593D2
Deuteranopia (green-blind)
#6286CE
Tritanopia (blue-blind)
#00A0A7
Achromatopsia (no color)
#8B8B8B
Design tokens & code
CSS
--color: #4591cf; /* rgb */ color: rgb(69, 145, 207); /* oklch */ color: oklch(63.6% 0.120 245.9);
Tailwind
colors: {
custom: {
50: '#87b1de',
500: '#4591cf',
950: '#000000',
},
}SCSS
$custom: #4591cf; $custom-light: #87b1de; $custom-dark: #000000;
JSON
{
"hex": "#4591cf",
"rgb": {
"r": 69,
"g": 145,
"b": 207
},
"hsl": {
"h": 206.957,
"s": 58.974,
"l": 54.118
},
"oklch": {
"l": 0.63604,
"c": 0.12004,
"h": 245.9
},
"luminance": 0.26021
}Semantic roles & 50–950 ramp
primary
#4591CF
secondary
#D5B59B
accent
#8C46E2
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83