#3181C2#3181C2
#3181C2 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.126 H 246.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).
Color values
| HEX | #3181C2 |
|---|---|
| RGB | rgb(49, 129, 194) |
| HSL | hsl(207, 60%, 48%) |
| HSV | hsv(207, 75%, 76%) |
| CMYK | cmyk(74.7%, 33.5%, 0%, 23.9%) |
| CIE-LAB | lab(52.11, -2.01, -40.82) |
| CIE-LCH | lch(52.11, 40.86, 267.18°) |
| OKLab | oklab(58.54% -0.0495 -0.1159) |
| OKLCH | oklch(58.54% 0.126 246.9) |
| XYZ | xyz(18.8508, 20.2463, 53.9429) |
| Luminance | 0.2025 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.18
Cerulean (survey)
#0485D1
ΔE00 2.37
Cool Blue
#4984B8
ΔE00 2.38
Water Blue
#0E87CC
ΔE00 3.05
Windows Blue
#3778BF
ΔE00 3.90
Bluish
#2976BB
ΔE00 4.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3181C2 #C27231
analogous
#31C2BB #3181C2 #3138C2
triadic
#3181C2 #C23181 #81C231
tetradic
#3181C2 #BB31C2 #C27231 #38C231
square
#3181C2 #BB31C2 #C27231 #38C231
split-complementary
#3181C2 #C23138 #C2BB31
monochromatic
#184060 #256191 #3181C2 #5B9ED6 #8CBBE2
Accessibility & contrast
On white
4.16
#3181C2 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.05
#3181C2 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3181C2
5.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3181C2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3181C2 | 1.00 | 4.16 | 5.05 | 5.05 |
| #FFFFFF | 4.16 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6384C5
Deuteranopia (green-blind)
#4F76C1
Tritanopia (blue-blind)
#009198
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #3181c2; /* rgb */ color: rgb(49, 129, 194); /* oklch */ color: oklch(58.5% 0.126 246.9);
Tailwind
colors: {
custom: {
50: '#7da5d5',
500: '#3181c2',
950: '#000000',
},
}SCSS
$custom: #3181c2; $custom-light: #7da5d5; $custom-dark: #000000;
JSON
{
"hex": "#3181c2",
"rgb": {
"r": 49,
"g": 129,
"b": 194
},
"hsl": {
"h": 206.897,
"s": 59.671,
"l": 47.647
},
"oklch": {
"l": 0.58541,
"c": 0.12601,
"h": 246.9
},
"luminance": 0.20249
}Semantic roles & 50–950 ramp
primary
#3181C2
secondary
#CCA483
accent
#8C45E3
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83