#3659D1#3659D1
#3659D1 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.189 H 267.0°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3659D1 |
|---|---|
| RGB | rgb(54, 89, 209) |
| HSL | hsl(226, 63%, 52%) |
| HSV | hsv(226, 74%, 82%) |
| CMYK | cmyk(74.2%, 57.4%, 0%, 18%) |
| CIE-LAB | lab(42.05, 29.27, -65.56) |
| CIE-LCH | lch(42.05, 71.80, 294.06°) |
| OKLab | oklab(51.14% -0.01 -0.1892) |
| OKLCH | oklch(51.14% 0.189 267) |
| XYZ | xyz(16.5983, 12.5307, 61.8531) |
| Luminance | 0.1253 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.40
Azul
#1D5DEC
ΔE00 3.51
Sapphire
#0F52BA
ΔE00 5.05
Electric Blue
#0652FF
ΔE00 5.48
Royal Blue
#4169E1
ΔE00 5.74
Denim
#1560BD
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3659D1 #D1AE36
analogous
#36A6D1 #3659D1 #6136D1
triadic
#3659D1 #D13659 #59D136
tetradic
#3659D1 #D136A6 #D1AE36 #36D161
square
#3659D1 #D136A6 #D1AE36 #36D161
split-complementary
#3659D1 #D16136 #A6D136
monochromatic
#1A2E72 #2642A4 #3659D1 #6882DC #9AABE8
Accessibility & contrast
On white
5.99
#3659D1 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#3659D1 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3659D1
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3659D1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3659D1 | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006BD5
Deuteranopia (green-blind)
#005CCF
Tritanopia (blue-blind)
#00778C
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #3659d1; /* rgb */ color: rgb(54, 89, 209); /* oklch */ color: oklch(51.1% 0.189 267.0);
Tailwind
colors: {
custom: {
50: '#8387e0',
500: '#3659d1',
950: '#000000',
},
}SCSS
$custom: #3659d1; $custom-light: #8387e0; $custom-dark: #000000;
JSON
{
"hex": "#3659d1",
"rgb": {
"r": 54,
"g": 89,
"b": 209
},
"hsl": {
"h": 226.452,
"s": 62.753,
"l": 51.569
},
"oklch": {
"l": 0.51137,
"c": 0.18943,
"h": 267
},
"luminance": 0.12532
}Semantic roles & 50–950 ramp
primary
#3659D1
secondary
#D3C48F
accent
#C142E6
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0B15
muted
#7D7C83