#3E81BF#3E81BF
#3E81BF is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.117 H 248.9°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).
Color values
| HEX | #3E81BF |
|---|---|
| RGB | rgb(62, 129, 191) |
| HSL | hsl(209, 51%, 50%) |
| HSV | hsv(209, 68%, 75%) |
| CMYK | cmyk(67.5%, 32.5%, 0%, 25.1%) |
| CIE-LAB | lab(52.38, -1.18, -38.65) |
| CIE-LCH | lch(52.38, 38.67, 268.26°) |
| OKLab | oklab(58.82% -0.0422 -0.1094) |
| OKLCH | oklch(58.82% 0.117 248.9) |
| XYZ | xyz(19.2373, 20.4842, 52.2201) |
| Luminance | 0.2049 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cool Blue
#4984B8
ΔE00 1.64
Steel Blue
#4682B4
ΔE00 1.66
Cerulean (survey)
#0485D1
ΔE00 3.39
Windows Blue
#3778BF
ΔE00 3.41
Off Blue
#5684AE
ΔE00 3.45
Water Blue
#0E87CC
ΔE00 4.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3E81BF #BF7C3E
analogous
#3EBFBC #3E81BF #3E41BF
triadic
#3E81BF #BF3E81 #81BF3E
tetradic
#3E81BF #BC3EBF #BF7C3E #41BF3E
square
#3E81BF #BC3EBF #BF7C3E #41BF3E
split-complementary
#3E81BF #BF3E41 #BFBC3E
monochromatic
#204363 #2F6291 #3E81BF #6B9FCF #99BDDE
Accessibility & contrast
On white
4.12
#3E81BF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.10
#3E81BF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3E81BF
5.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3E81BF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3E81BF | 1.00 | 4.12 | 5.10 | 5.10 |
| #FFFFFF | 4.12 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.10 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.10 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6684C2
Deuteranopia (green-blind)
#5477BE
Tritanopia (blue-blind)
#009097
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #3e81bf; /* rgb */ color: rgb(62, 129, 191); /* oklch */ color: oklch(58.8% 0.117 248.9);
Tailwind
colors: {
custom: {
50: '#81a5d2',
500: '#3e81bf',
950: '#000000',
},
}SCSS
$custom: #3e81bf; $custom-light: #81a5d2; $custom-dark: #000000;
JSON
{
"hex": "#3e81bf",
"rgb": {
"r": 62,
"g": 129,
"b": 191
},
"hsl": {
"h": 208.837,
"s": 50.988,
"l": 49.608
},
"oklch": {
"l": 0.58817,
"c": 0.11731,
"h": 248.9
},
"luminance": 0.20486
}Semantic roles & 50–950 ramp
primary
#3E81BF
secondary
#CAAB8F
accent
#914DDA
background
#F8FAFC
surface
#F0F4F9
border
#CBCED2
text
#0B0F14
muted
#7C7F82