#3983B4#3983B4
#3983B4 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.5% C 0.105 H 240.9°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).
Color values
| HEX | #3983B4 |
|---|---|
| RGB | rgb(57, 131, 180) |
| HSL | hsl(204, 52%, 46%) |
| HSV | hsv(204, 68%, 71%) |
| CMYK | cmyk(68.3%, 27.2%, 0%, 29.4%) |
| CIE-LAB | lab(52.28, -6.98, -32.51) |
| CIE-LCH | lch(52.28, 33.26, 257.88°) |
| OKLab | oklab(58.52% -0.051 -0.0916) |
| OKLCH | oklch(58.52% 0.105 240.9) |
| XYZ | xyz(18.0387, 20.3958, 46.1573) |
| Luminance | 0.2040 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.14
Cool Blue
#4984B8
ΔE00 2.73
Water Blue
#0E87CC
ΔE00 3.29
Cerulean (survey)
#0485D1
ΔE00 3.71
Off Blue
#5684AE
ΔE00 3.94
Nice Blue
#107AB0
ΔE00 4.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3983B4 #B46A39
analogous
#39B4A8 #3983B4 #3946B4
triadic
#3983B4 #B43983 #83B439
tetradic
#3983B4 #A839B4 #B46A39 #46B439
square
#3983B4 #A839B4 #B46A39 #46B439
split-complementary
#3983B4 #B43946 #B4A839
monochromatic
#1C3F57 #2A6186 #3983B4 #5EA0CC #8DBCDB
Accessibility & contrast
On white
4.13
#3983B4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.08
#3983B4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3983B4
5.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3983B4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3983B4 | 1.00 | 4.13 | 5.08 | 5.08 |
| #FFFFFF | 4.13 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.08 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.08 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6D83B6
Deuteranopia (green-blind)
#5C77B3
Tritanopia (blue-blind)
#008F94
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #3983b4; /* rgb */ color: rgb(57, 131, 180); /* oklch */ color: oklch(58.5% 0.105 240.9);
Tailwind
colors: {
custom: {
50: '#7da6ca',
500: '#3983b4',
950: '#000000',
},
}SCSS
$custom: #3983b4; $custom-light: #7da6ca; $custom-dark: #000000;
JSON
{
"hex": "#3983b4",
"rgb": {
"r": 57,
"g": 131,
"b": 180
},
"hsl": {
"h": 203.902,
"s": 51.899,
"l": 46.471
},
"oklch": {
"l": 0.58521,
"c": 0.10488,
"h": 240.9
},
"luminance": 0.20398
}Semantic roles & 50–950 ramp
primary
#3983B4
secondary
#C59E83
accent
#854CDB
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B0F13
muted
#7C7F82