#3983B8#3983B8
#3983B8 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.7% C 0.109 H 243.0°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).
Color values
| HEX | #3983B8 |
|---|---|
| RGB | rgb(57, 131, 184) |
| HSL | hsl(205, 53%, 47%) |
| HSV | hsv(205, 69%, 72%) |
| CMYK | cmyk(69%, 28.8%, 0%, 27.8%) |
| CIE-LAB | lab(52.47, -5.60, -34.52) |
| CIE-LCH | lch(52.47, 34.97, 260.79°) |
| OKLab | oklab(58.73% -0.0497 -0.0975) |
| OKLCH | oklch(58.73% 0.109 243) |
| XYZ | xyz(18.4521, 20.5612, 48.3344) |
| Luminance | 0.2056 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 1.65
Cool Blue
#4984B8
ΔE00 2.13
Water Blue
#0E87CC
ΔE00 2.84
Cerulean (survey)
#0485D1
ΔE00 3.01
Off Blue
#5684AE
ΔE00 3.74
Dusty Blue
#5A86AD
ΔE00 4.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3983B8 #B86E39
analogous
#39B8AD #3983B8 #3944B8
triadic
#3983B8 #B83983 #83B839
tetradic
#3983B8 #AD39B8 #B86E39 #44B839
square
#3983B8 #AD39B8 #B86E39 #44B839
split-complementary
#3983B8 #B83944 #B8AD39
monochromatic
#1C405B #2B6289 #3983B8 #60A0CE #8FBCDC
Accessibility & contrast
On white
4.11
#3983B8 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.11
#3983B8 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3983B8
5.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3983B8 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3983B8 | 1.00 | 4.11 | 5.11 | 5.11 |
| #FFFFFF | 4.11 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.11 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.11 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6B84BA
Deuteranopia (green-blind)
#5A78B7
Tritanopia (blue-blind)
#009096
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #3983b8; /* rgb */ color: rgb(57, 131, 184); /* oklch */ color: oklch(58.7% 0.109 243.0);
Tailwind
colors: {
custom: {
50: '#7ea6cd',
500: '#3983b8',
950: '#000000',
},
}SCSS
$custom: #3983b8; $custom-light: #7ea6cd; $custom-dark: #000000;
JSON
{
"hex": "#3983b8",
"rgb": {
"r": 57,
"g": 131,
"b": 184
},
"hsl": {
"h": 205.039,
"s": 52.697,
"l": 47.255
},
"oklch": {
"l": 0.58727,
"c": 0.1094,
"h": 243
},
"luminance": 0.20563
}Semantic roles & 50–950 ramp
primary
#3983B8
secondary
#C7A186
accent
#884CDC
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B0F13
muted
#7C7F82