#505BCB#505BCB
#505BCB is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.5% C 0.172 H 274.6°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #505BCB |
|---|---|
| RGB | rgb(80, 91, 203) |
| HSL | hsl(235, 54%, 55%) |
| HSV | hsv(235, 61%, 80%) |
| CMYK | cmyk(60.6%, 55.2%, 0%, 20.4%) |
| CIE-LAB | lab(43.50, 29.72, -59.68) |
| CIE-LCH | lch(43.50, 66.67, 296.47°) |
| OKLab | oklab(52.46% 0.0138 -0.1713) |
| OKLCH | oklch(52.46% 0.172 274.6) |
| XYZ | xyz(17.8253, 13.4980, 58.1544) |
| Luminance | 0.1350 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.42
Iris
#6258C4
ΔE00 3.63
Dark Periwinkle
#665FD1
ΔE00 3.89
Slate Blue
#6A5ACD
ΔE00 4.67
Light Indigo
#6D5ACF
ΔE00 5.23
Azul
#1D5DEC
ΔE00 5.46
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#505BCB #CBC050
analogous
#5098CB #505BCB #8250CB
triadic
#505BCB #CB505B #5BCB50
tetradic
#505BCB #CB5098 #CBC050 #50CB82
square
#505BCB #CB5098 #CBC050 #50CB82
split-complementary
#505BCB #CB8250 #98CB50
monochromatic
#252D7C #333EAB #505BCB #7F87D9 #AEB3E7
Accessibility & contrast
On white
5.68
#505BCB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.70
#505BCB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #505BCB
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##505BCB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##505BCB | 1.00 | 5.68 | 3.70 | 5.68 |
| #FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006CCF
Deuteranopia (green-blind)
#0062C9
Tritanopia (blue-blind)
#00758A
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #505bcb; /* rgb */ color: rgb(80, 91, 203); /* oklch */ color: oklch(52.5% 0.172 274.6);
Tailwind
colors: {
custom: {
50: '#8d89dc',
500: '#505bcb',
950: '#000000',
},
}SCSS
$custom: #505bcb; $custom-light: #8d89dc; $custom-dark: #000000;
JSON
{
"hex": "#505bcb",
"rgb": {
"r": 80,
"g": 91,
"b": 203
},
"hsl": {
"h": 234.634,
"s": 54.185,
"l": 55.49
},
"oklch": {
"l": 0.52461,
"c": 0.17182,
"h": 274.6
},
"luminance": 0.13499
}Semantic roles & 50–950 ramp
primary
#505BCB
secondary
#D5D0A2
accent
#D04ADE
background
#F9F8FD
surface
#F1F0FB
border
#CBCBD4
text
#0D0B15
muted
#7E7C83