#3B71D3#3B71D3
#3B71D3 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.4% C 0.162 H 261.2°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).
Color values
| HEX | #3B71D3 |
|---|---|
| RGB | rgb(59, 113, 211) |
| HSL | hsl(219, 63%, 53%) |
| HSV | hsv(219, 72%, 83%) |
| CMYK | cmyk(72%, 46.4%, 0%, 17.3%) |
| CIE-LAB | lab(48.81, 15.35, -55.75) |
| CIE-LCH | lch(48.81, 57.83, 285.39°) |
| OKLab | oklab(56.37% -0.0248 -0.1598) |
| OKLCH | oklch(56.37% 0.162 261.2) |
| XYZ | xyz(19.4624, 17.4411, 63.9561) |
| Luminance | 0.1744 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cerulean Blue
#056EEE
ΔE00 2.98
Cornflower Blue
#5170D7
ΔE00 3.51
Royal Blue
#4169E1
ΔE00 4.00
Medium Blue
#2C6FBB
ΔE00 4.15
Deep Sky Blue
#0D75F8
ΔE00 4.19
Windows Blue
#3778BF
ΔE00 4.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B71D3 #D39D3B
analogous
#3BBDD3 #3B71D3 #513BD3
triadic
#3B71D3 #D33B71 #71D33B
tetradic
#3B71D3 #D33BBD #D39D3B #3BD351
square
#3B71D3 #D33BBD #D39D3B #3BD351
split-complementary
#3B71D3 #D3513B #BDD33B
monochromatic
#1B3C79 #2655AB #3B71D3 #6D95DE #9FB9E9
Accessibility & contrast
On white
4.68
#3B71D3 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.49
#3B71D3 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3B71D3
4.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B71D3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3B71D3 | 1.00 | 4.68 | 4.49 | 4.68 |
| #FFFFFF | 4.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.49 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3D7BD7
Deuteranopia (green-blind)
#196DD1
Tritanopia (blue-blind)
#008898
Achromatopsia (no color)
#747474
Design tokens & code
CSS
--color: #3b71d3; /* rgb */ color: rgb(59, 113, 211); /* oklch */ color: oklch(56.4% 0.162 261.2);
Tailwind
colors: {
custom: {
50: '#8499e1',
500: '#3b71d3',
950: '#000000',
},
}SCSS
$custom: #3b71d3; $custom-light: #8499e1; $custom-dark: #000000;
JSON
{
"hex": "#3b71d3",
"rgb": {
"r": 59,
"g": 113,
"b": 211
},
"hsl": {
"h": 218.684,
"s": 63.333,
"l": 52.941
},
"oklch": {
"l": 0.56371,
"c": 0.16176,
"h": 261.2
},
"luminance": 0.17443
}Semantic roles & 50–950 ramp
primary
#3B71D3
secondary
#D6BE94
accent
#AC41E6
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0D15
muted
#7D7E83