#3683C1#3683C1
#3683C1 is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.1% C 0.121 H 246.3°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).
Color values
| HEX | #3683C1 |
|---|---|
| RGB | rgb(54, 131, 193) |
| HSL | hsl(207, 56%, 48%) |
| HSV | hsv(207, 72%, 76%) |
| CMYK | cmyk(72%, 32.1%, 0%, 24.3%) |
| CIE-LAB | lab(52.80, -2.88, -39.15) |
| CIE-LCH | lch(52.80, 39.26, 265.79°) |
| OKLab | oklab(59.11% -0.0488 -0.111) |
| OKLCH | oklch(59.11% 0.121 246.3) |
| XYZ | xyz(19.2596, 20.8650, 53.4540) |
| Luminance | 0.2087 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 1.90
Cool Blue
#4984B8
ΔE00 1.92
Cerulean (survey)
#0485D1
ΔE00 2.19
Water Blue
#0E87CC
ΔE00 2.65
Off Blue
#5684AE
ΔE00 3.98
Windows Blue
#3778BF
ΔE00 4.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3683C1 #C17436
analogous
#36C1B9 #3683C1 #363DC1
triadic
#3683C1 #C13683 #83C136
tetradic
#3683C1 #B936C1 #C17436 #3DC136
square
#3683C1 #B936C1 #C17436 #3DC136
split-complementary
#3683C1 #C1363D #C1B936
monochromatic
#1B4261 #296391 #3683C1 #61A0D3 #91BDE0
Accessibility & contrast
On white
4.06
#3683C1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.17
#3683C1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3683C1
5.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3683C1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3683C1 | 1.00 | 4.06 | 5.17 | 5.17 |
| #FFFFFF | 4.06 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.17 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.17 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6785C4
Deuteranopia (green-blind)
#5378C0
Tritanopia (blue-blind)
#009299
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #3683c1; /* rgb */ color: rgb(54, 131, 193); /* oklch */ color: oklch(59.1% 0.121 246.3);
Tailwind
colors: {
custom: {
50: '#7ea6d4',
500: '#3683c1',
950: '#000000',
},
}SCSS
$custom: #3683c1; $custom-light: #7ea6d4; $custom-dark: #000000;
JSON
{
"hex": "#3683c1",
"rgb": {
"r": 54,
"g": 131,
"b": 193
},
"hsl": {
"h": 206.763,
"s": 56.275,
"l": 48.431
},
"oklch": {
"l": 0.59107,
"c": 0.12121,
"h": 246.3
},
"luminance": 0.20867
}Semantic roles & 50–950 ramp
primary
#3683C1
secondary
#CBA688
accent
#8C48E0
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83