#5556BB#5556BB
#5556BB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.155 H 278.9°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).
Color values
| HEX | #5556BB |
|---|---|
| RGB | rgb(85, 86, 187) |
| HSL | hsl(239, 43%, 53%) |
| HSV | hsv(239, 55%, 73%) |
| CMYK | cmyk(54.5%, 54%, 0%, 26.7%) |
| CIE-LAB | lab(41.49, 28.51, -53.63) |
| CIE-LCH | lch(41.49, 60.73, 297.99°) |
| OKLab | oklab(50.7% 0.024 -0.1534) |
| OKLCH | oklch(50.7% 0.155 278.9) |
| XYZ | xyz(16.0409, 12.1737, 48.5086) |
| Luminance | 0.1217 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Iris
#6258C4
ΔE00 2.69
Warm Blue
#4B57DB
ΔE00 4.56
Slate Blue
#6A5ACD
ΔE00 4.62
Dark Periwinkle
#665FD1
ΔE00 4.94
Light Indigo
#6D5ACF
ΔE00 5.23
Ocean Blue
#4F42B5
ΔE00 6.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5556BB #BBBA55
analogous
#5589BB #5556BB #8755BB
triadic
#5556BB #BB5556 #56BB55
tetradic
#5556BB #BB5589 #BBBA55 #55BB87
square
#5556BB #BB5589 #BBBA55 #55BB87
split-complementary
#5556BB #BB8755 #89BB55
monochromatic
#2B2B6B #3C3D97 #5556BB #8181CC #ACADDE
Accessibility & contrast
On white
6.11
#5556BB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.44
#5556BB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5556BB
6.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5556BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5556BB | 1.00 | 6.11 | 3.44 | 6.11 |
| #FFFFFF | 6.11 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.11 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1966BE
Deuteranopia (green-blind)
#015EB9
Tritanopia (blue-blind)
#256D80
Achromatopsia (no color)
#626262
Design tokens & code
CSS
--color: #5556bb; /* rgb */ color: rgb(85, 86, 187); /* oklch */ color: oklch(50.7% 0.155 278.9);
Tailwind
colors: {
custom: {
50: '#8d85d0',
500: '#5556bb',
950: '#000000',
},
}SCSS
$custom: #5556bb; $custom-light: #8d85d0; $custom-dark: #000000;
JSON
{
"hex": "#5556bb",
"rgb": {
"r": 85,
"g": 86,
"b": 187
},
"hsl": {
"h": 239.412,
"s": 42.857,
"l": 53.333
},
"oklch": {
"l": 0.50695,
"c": 0.15526,
"h": 278.9
},
"luminance": 0.12175
}Semantic roles & 50–950 ramp
primary
#5556BB
secondary
#CCCBA0
accent
#D155D3
background
#F9F8FC
surface
#F1EFF9
border
#CBCAD2
text
#0D0B14
muted
#7E7C82