#3550B5#3550B5
#3550B5 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.163 H 268.2°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).
Color values
| HEX | #3550B5 |
|---|---|
| RGB | rgb(53, 80, 181) |
| HSL | hsl(227, 55%, 46%) |
| HSV | hsv(227, 71%, 71%) |
| CMYK | cmyk(70.7%, 55.8%, 0%, 29%) |
| CIE-LAB | lab(37.53, 24.70, -56.61) |
| CIE-LCH | lch(37.53, 61.76, 293.57°) |
| OKLab | oklab(47.08% -0.0052 -0.163) |
| OKLCH | oklch(47.08% 0.163 268.2) |
| XYZ | xyz(12.6745, 9.8291, 44.9364) |
| Luminance | 0.0983 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 3.35
Cobalt
#0047AB
ΔE00 4.47
Blue Blue
#2242C7
ΔE00 4.96
Denim Blue
#3B5B92
ΔE00 6.33
Blue (survey)
#0343DF
ΔE00 6.42
Cobalt (survey)
#1E488F
ΔE00 6.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3550B5 #B59A35
analogous
#3590B5 #3550B5 #5A35B5
triadic
#3550B5 #B53550 #50B535
tetradic
#3550B5 #B53590 #B59A35 #35B55A
square
#3550B5 #B53590 #B59A35 #35B55A
split-complementary
#3550B5 #B55A35 #90B535
monochromatic
#192656 #273B86 #3550B5 #5972CE #889ADC
Accessibility & contrast
On white
7.08
#3550B5 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.97
#3550B5 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3550B5
7.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3550B5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3550B5 | 1.00 | 7.08 | 2.97 | 7.08 |
| #FFFFFF | 7.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005EB8
Deuteranopia (green-blind)
#0053B3
Tritanopia (blue-blind)
#00697A
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #3550b5; /* rgb */ color: rgb(53, 80, 181); /* oklch */ color: oklch(47.1% 0.163 268.2);
Tailwind
colors: {
custom: {
50: '#7d80cc',
500: '#3550b5',
950: '#000000',
},
}SCSS
$custom: #3550b5; $custom-light: #7d80cc; $custom-dark: #000000;
JSON
{
"hex": "#3550b5",
"rgb": {
"r": 53,
"g": 80,
"b": 181
},
"hsl": {
"h": 227.344,
"s": 54.701,
"l": 45.882
},
"oklch": {
"l": 0.47075,
"c": 0.16309,
"h": 268.2
},
"luminance": 0.0983
}Semantic roles & 50–950 ramp
primary
#3550B5
secondary
#C6B780
accent
#BF4ADE
background
#F8F7FC
surface
#EFEEF9
border
#CAC9D2
text
#0B0A13
muted
#7C7C82