#505BBA#505BBA
#505BBA is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.148 H 274.9°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).
Color values
| HEX | #505BBA |
|---|---|
| RGB | rgb(80, 91, 186) |
| HSL | hsl(234, 43%, 52%) |
| HSV | hsv(234, 57%, 73%) |
| CMYK | cmyk(57%, 51.1%, 0%, 27.1%) |
| CIE-LAB | lab(42.36, 24.02, -51.67) |
| CIE-LCH | lch(42.36, 56.98, 294.93°) |
| OKLab | oklab(51.23% 0.0127 -0.1477) |
| OKLCH | oklch(51.23% 0.148 274.9) |
| XYZ | xyz(15.9094, 12.7317, 48.0640) |
| Luminance | 0.1273 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Iris
#6258C4
ΔE00 4.09
Warm Blue
#4B57DB
ΔE00 4.71
Dark Periwinkle
#665FD1
ΔE00 5.23
Slate Blue
#6A5ACD
ΔE00 5.70
Light Indigo
#6D5ACF
ΔE00 6.32
Dusky Blue
#475F94
ΔE00 6.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#505BBA #BAAF50
analogous
#5090BA #505BBA #7A50BA
triadic
#505BBA #BA505B #5BBA50
tetradic
#505BBA #BA5090 #BAAF50 #50BA7A
square
#505BBA #BA5090 #BAAF50 #50BA7A
split-complementary
#505BBA #BA7A50 #90BA50
monochromatic
#292F67 #3A4393 #505BBA #7C84CB #A8ADDD
Accessibility & contrast
On white
5.92
#505BBA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.55
#505BBA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #505BBA
5.92:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##505BBA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##505BBA | 1.00 | 5.92 | 3.55 | 5.92 |
| #FFFFFF | 5.92 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.92 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2969BD
Deuteranopia (green-blind)
#1560B8
Tritanopia (blue-blind)
#0F7082
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #505bba; /* rgb */ color: rgb(80, 91, 186); /* oklch */ color: oklch(51.2% 0.148 274.9);
Tailwind
colors: {
custom: {
50: '#8a89cf',
500: '#505bba',
950: '#000000',
},
}SCSS
$custom: #505bba; $custom-light: #8a89cf; $custom-dark: #000000;
JSON
{
"hex": "#505bba",
"rgb": {
"r": 80,
"g": 91,
"b": 186
},
"hsl": {
"h": 233.774,
"s": 43.443,
"l": 52.157
},
"oklch": {
"l": 0.51233,
"c": 0.14826,
"h": 274.9
},
"luminance": 0.12733
}Semantic roles & 50–950 ramp
primary
#505BBA
secondary
#CAC59C
accent
#C655D3
background
#F8F8FC
surface
#F0F0F9
border
#CBCBD2
text
#0C0B14
muted
#7D7C82