#3181C1#3181C1
#3181C1 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.125 H 246.5°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).
Color values
| HEX | #3181C1 |
|---|---|
| RGB | rgb(49, 129, 193) |
| HSL | hsl(207, 60%, 47%) |
| HSV | hsv(207, 75%, 76%) |
| CMYK | cmyk(74.6%, 33.2%, 0%, 24.3%) |
| CIE-LAB | lab(52.06, -2.37, -40.32) |
| CIE-LCH | lch(52.06, 40.39, 266.63°) |
| OKLab | oklab(58.49% -0.0498 -0.1145) |
| OKLCH | oklch(58.49% 0.125 246.5) |
| XYZ | xyz(18.7388, 20.2016, 53.3534) |
| Luminance | 0.2020 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.13
Cerulean (survey)
#0485D1
ΔE00 2.37
Cool Blue
#4984B8
ΔE00 2.38
Water Blue
#0E87CC
ΔE00 2.98
Windows Blue
#3778BF
ΔE00 3.97
Bluish
#2976BB
ΔE00 4.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3181C1 #C17131
analogous
#31C1B9 #3181C1 #3139C1
triadic
#3181C1 #C13181 #81C131
tetradic
#3181C1 #B931C1 #C17131 #39C131
square
#3181C1 #B931C1 #C17131 #39C131
split-complementary
#3181C1 #C13139 #C1B931
monochromatic
#18405F #256090 #3181C1 #5A9ED5 #8BBBE2
Accessibility & contrast
On white
4.17
#3181C1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.04
#3181C1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3181C1
5.04:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3181C1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3181C1 | 1.00 | 4.17 | 5.04 | 5.04 |
| #FFFFFF | 4.17 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.04 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.04 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6484C4
Deuteranopia (green-blind)
#4F76C0
Tritanopia (blue-blind)
#009098
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #3181c1; /* rgb */ color: rgb(49, 129, 193); /* oklch */ color: oklch(58.5% 0.125 246.5);
Tailwind
colors: {
custom: {
50: '#7ca5d4',
500: '#3181c1',
950: '#000000',
},
}SCSS
$custom: #3181c1; $custom-light: #7ca5d4; $custom-dark: #000000;
JSON
{
"hex": "#3181c1",
"rgb": {
"r": 49,
"g": 129,
"b": 193
},
"hsl": {
"h": 206.667,
"s": 59.504,
"l": 47.451
},
"oklch": {
"l": 0.58485,
"c": 0.12481,
"h": 246.5
},
"luminance": 0.20204
}Semantic roles & 50–950 ramp
primary
#3181C1
secondary
#CCA382
accent
#8B45E3
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83