#3B5BD3#3B5BD3
#3B5BD3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.188 H 267.9°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #3B5BD3 |
|---|---|
| RGB | rgb(59, 91, 211) |
| HSL | hsl(227, 63%, 53%) |
| HSV | hsv(227, 72%, 83%) |
| CMYK | cmyk(72%, 56.9%, 0%, 17.3%) |
| CIE-LAB | lab(42.93, 29.33, -65.25) |
| CIE-LCH | lch(42.93, 71.54, 294.20°) |
| OKLab | oklab(51.91% -0.007 -0.1882) |
| OKLCH | oklch(51.91% 0.188 267.9) |
| XYZ | xyz(17.2985, 13.1133, 63.2348) |
| Luminance | 0.1311 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.07
Azul
#1D5DEC
ΔE00 3.18
Royal Blue
#4169E1
ΔE00 5.03
Electric Blue
#0652FF
ΔE00 5.41
Sapphire
#0F52BA
ΔE00 5.79
Bright Blue
#0165FC
ΔE00 6.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B5BD3 #D3B33B
analogous
#3BA7D3 #3B5BD3 #673BD3
triadic
#3B5BD3 #D33B5B #5BD33B
tetradic
#3B5BD3 #D33BA7 #D3B33B #3BD367
square
#3B5BD3 #D33BA7 #D3B33B #3BD367
split-complementary
#3B5BD3 #D3673B #A7D33B
monochromatic
#1B2F79 #2642AB #3B5BD3 #6D85DE #9FAFE9
Accessibility & contrast
On white
5.80
#3B5BD3 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#3B5BD3 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3B5BD3
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B5BD3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3B5BD3 | 1.00 | 5.80 | 3.62 | 5.80 |
| #FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006DD7
Deuteranopia (green-blind)
#005FD1
Tritanopia (blue-blind)
#00798E
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #3b5bd3; /* rgb */ color: rgb(59, 91, 211); /* oklch */ color: oklch(51.9% 0.188 267.9);
Tailwind
colors: {
custom: {
50: '#8589e1',
500: '#3b5bd3',
950: '#000000',
},
}SCSS
$custom: #3b5bd3; $custom-light: #8589e1; $custom-dark: #000000;
JSON
{
"hex": "#3b5bd3",
"rgb": {
"r": 59,
"g": 91,
"b": 211
},
"hsl": {
"h": 227.368,
"s": 63.333,
"l": 52.941
},
"oklch": {
"l": 0.51909,
"c": 0.18829,
"h": 267.9
},
"luminance": 0.13115
}Semantic roles & 50–950 ramp
primary
#3B5BD3
secondary
#D6C894
accent
#C441E6
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0B15
muted
#7D7C83