#3683AB#3683AB
#3683AB is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.0% C 0.097 H 234.7°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3683AB |
|---|---|
| RGB | rgb(54, 131, 171) |
| HSL | hsl(201, 52%, 44%) |
| HSV | hsv(201, 68%, 67%) |
| CMYK | cmyk(68.4%, 23.4%, 0%, 32.9%) |
| CIE-LAB | lab(51.79, -10.55, -28.11) |
| CIE-LCH | lch(51.79, 30.02, 249.42°) |
| OKLab | oklab(57.97% -0.0559 -0.0789) |
| OKLCH | oklch(57.97% 0.097 234.7) |
| XYZ | xyz(16.9854, 19.9553, 41.4768) |
| Luminance | 0.1996 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cerulean
#007BA7
ΔE00 3.95
Dirty Blue
#3F829D
ΔE00 3.95
Steel Blue
#4682B4
ΔE00 4.49
Nice Blue
#107AB0
ΔE00 4.57
Stormy Blue
#507B9C
ΔE00 4.99
Cool Blue
#4984B8
ΔE00 5.13
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3683AB #AB5E36
analogous
#36AB99 #3683AB #3649AB
triadic
#3683AB #AB3683 #83AB36
tetradic
#3683AB #9936AB #AB5E36 #49AB36
square
#3683AB #9936AB #AB5E36 #49AB36
split-complementary
#3683AB #AB3649 #AB9936
monochromatic
#193C4E #275F7C #3683AB #55A2C9 #83BBD8
Accessibility & contrast
On white
4.21
#3683AB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#3683AB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3683AB
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3683AB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3683AB | 1.00 | 4.21 | 4.99 | 4.99 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7082AD
Deuteranopia (green-blind)
#6076AA
Tritanopia (blue-blind)
#008E90
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #3683ab; /* rgb */ color: rgb(54, 131, 171); /* oklch */ color: oklch(58.0% 0.097 234.7);
Tailwind
colors: {
custom: {
50: '#7ba7c4',
500: '#3683ab',
950: '#000000',
},
}SCSS
$custom: #3683ab; $custom-light: #7ba7c4; $custom-dark: #000000;
JSON
{
"hex": "#3683ab",
"rgb": {
"r": 54,
"g": 131,
"b": 171
},
"hsl": {
"h": 200.513,
"s": 52,
"l": 44.118
},
"oklch": {
"l": 0.57969,
"c": 0.09676,
"h": 234.7
},
"luminance": 0.19957
}Semantic roles & 50–950 ramp
primary
#3683AB
secondary
#C2937B
accent
#7D4CDB
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0A0F12
muted
#7C7F81