#3643B2#3643B2
#3643B2 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.4% C 0.175 H 272.0°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).
Color values
| HEX | #3643B2 |
|---|---|
| RGB | rgb(54, 67, 178) |
| HSL | hsl(234, 53%, 45%) |
| HSV | hsv(234, 70%, 70%) |
| CMYK | cmyk(69.7%, 62.4%, 0%, 30.2%) |
| CIE-LAB | lab(34.01, 32.19, -60.57) |
| CIE-LCH | lch(34.01, 68.59, 297.99°) |
| OKLab | oklab(44.39% 0.0061 -0.1748) |
| OKLCH | oklch(44.39% 0.175 272) |
| XYZ | xyz(11.5616, 8.0118, 43.0480) |
| Luminance | 0.0801 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.93
Sapphire (survey)
#2138AB
ΔE00 3.55
Ocean Blue
#4F42B5
ΔE00 3.82
Blueberry
#464196
ΔE00 5.01
Cobalt
#0047AB
ΔE00 5.20
Blue (survey)
#0343DF
ΔE00 5.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3643B2 #B2A536
analogous
#3681B2 #3643B2 #6736B2
triadic
#3643B2 #B23643 #43B236
tetradic
#3643B2 #B23681 #B2A536 #36B267
square
#3643B2 #B23681 #B2A536 #36B267
split-complementary
#3643B2 #B26736 #81B236
monochromatic
#1A2054 #283183 #3643B2 #5965CD #8890DB
Accessibility & contrast
On white
8.07
#3643B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.60
#3643B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3643B2
8.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3643B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3643B2 | 1.00 | 8.07 | 2.60 | 8.07 |
| #FFFFFF | 8.07 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.60 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.07 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0056B6
Deuteranopia (green-blind)
#004AB0
Tritanopia (blue-blind)
#005F74
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #3643b2; /* rgb */ color: rgb(54, 67, 178); /* oklch */ color: oklch(44.4% 0.175 272.0);
Tailwind
colors: {
custom: {
50: '#7d77ca',
500: '#3643b2',
950: '#000000',
},
}SCSS
$custom: #3643b2; $custom-light: #7d77ca; $custom-dark: #000000;
JSON
{
"hex": "#3643b2",
"rgb": {
"r": 54,
"g": 67,
"b": 178
},
"hsl": {
"h": 233.71,
"s": 53.448,
"l": 45.49
},
"oklch": {
"l": 0.4439,
"c": 0.17489,
"h": 272
},
"luminance": 0.08013
}Semantic roles & 50–950 ramp
primary
#3643B2
secondary
#C5BD7F
accent
#CE4BDD
background
#F8F7FC
surface
#EFEDF8
border
#CAC8D1
text
#0B0813
muted
#7C7B82