#3591CA#3591CA
#3591CA is a light, vivid cyan. Relative luminance 0.253; OKLCH L 62.8% C 0.121 H 240.2°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).
Color values
| HEX | #3591CA |
|---|---|
| RGB | rgb(53, 145, 202) |
| HSL | hsl(203, 58%, 50%) |
| HSV | hsv(203, 74%, 79%) |
| CMYK | cmyk(73.8%, 28.2%, 0%, 20.8%) |
| CIE-LAB | lab(57.34, -7.95, -37.13) |
| CIE-LCH | lch(57.34, 37.98, 257.91°) |
| OKLab | oklab(62.82% -0.06 -0.1049) |
| OKLCH | oklch(62.82% 0.121 240.2) |
| XYZ | xyz(22.2501, 25.2694, 59.5705) |
| Luminance | 0.2527 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 3.87
Cerulean (survey)
#0485D1
ΔE00 4.83
Azure (survey)
#069AF3
ΔE00 5.12
Cool Blue
#4984B8
ΔE00 5.51
Steel Blue
#4682B4
ΔE00 5.93
Dark Sky Blue
#448EE4
ΔE00 6.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3591CA #CA6E35
analogous
#35CAB8 #3591CA #3547CA
triadic
#3591CA #CA3591 #91CA35
tetradic
#3591CA #B835CA #CA6E35 #47CA35
square
#3591CA #B835CA #CA6E35 #47CA35
split-complementary
#3591CA #CA3547 #CAB835
monochromatic
#1C4B69 #286E9A #3591CA #65ABD7 #96C6E3
Accessibility & contrast
On white
3.47
#3591CA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.05
#3591CA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3591CA
6.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3591CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3591CA | 1.00 | 3.47 | 6.05 | 6.05 |
| #FFFFFF | 3.47 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7692CD
Deuteranopia (green-blind)
#6283C9
Tritanopia (blue-blind)
#009FA5
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #3591ca; /* rgb */ color: rgb(53, 145, 202); /* oklch */ color: oklch(62.8% 0.121 240.2);
Tailwind
colors: {
custom: {
50: '#80b1da',
500: '#3591ca',
950: '#000000',
},
}SCSS
$custom: #3591ca; $custom-light: #80b1da; $custom-dark: #000000;
JSON
{
"hex": "#3591ca",
"rgb": {
"r": 53,
"g": 145,
"b": 202
},
"hsl": {
"h": 202.953,
"s": 58.431,
"l": 50
},
"oklch": {
"l": 0.62824,
"c": 0.12091,
"h": 240.2
},
"luminance": 0.25272
}Semantic roles & 50–950 ramp
primary
#3591CA
secondary
#CFA68C
accent
#8246E2
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0C1015
muted
#7D7F83