#576BDB#576BDB
#576BDB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.1% C 0.171 H 272.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).
Color values
| HEX | #576BDB |
|---|---|
| RGB | rgb(87, 107, 219) |
| HSL | hsl(231, 65%, 60%) |
| HSV | hsv(231, 60%, 86%) |
| CMYK | cmyk(60.3%, 51.1%, 0%, 14.1%) |
| CIE-LAB | lab(49.07, 26.36, -59.80) |
| CIE-LCH | lch(49.07, 65.36, 293.79°) |
| OKLab | oklab(57.1% 0.0067 -0.1713) |
| OKLCH | oklch(57.1% 0.171 272.2) |
| XYZ | xyz(21.9701, 17.6543, 69.2540) |
| Luminance | 0.1766 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 2.40
Royal Blue
#4169E1
ΔE00 2.82
Dark Periwinkle
#665FD1
ΔE00 5.43
Bright Blue
#0165FC
ΔE00 5.73
Azul
#1D5DEC
ΔE00 6.14
Warm Blue
#4B57DB
ΔE00 6.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#576BDB #DBC757
analogous
#57ADDB #576BDB #8557DB
triadic
#576BDB #DB576B #6BDB57
tetradic
#576BDB #DB57AD #DBC757 #57DB85
square
#576BDB #DB57AD #DBC757 #57DB85
split-complementary
#576BDB #DB8557 #ADDB57
monochromatic
#203297 #2B43CA #576BDB #8997E6 #BCC4F1
Accessibility & contrast
On white
4.63
#576BDB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.53
#576BDB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #576BDB
4.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##576BDB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##576BDB | 1.00 | 4.63 | 4.53 | 4.63 |
| #FFFFFF | 4.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.53 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2B7BDF
Deuteranopia (green-blind)
#006FD9
Tritanopia (blue-blind)
#008599
Achromatopsia (no color)
#757575
Design tokens & code
CSS
--color: #576bdb; /* rgb */ color: rgb(87, 107, 219); /* oklch */ color: oklch(57.1% 0.171 272.2);
Tailwind
colors: {
custom: {
50: '#9295e7',
500: '#576bdb',
950: '#000000',
},
}SCSS
$custom: #576bdb; $custom-light: #9295e7; $custom-dark: #000000;
JSON
{
"hex": "#576bdb",
"rgb": {
"r": 87,
"g": 107,
"b": 219
},
"hsl": {
"h": 230.909,
"s": 64.706,
"l": 60
},
"oklch": {
"l": 0.571,
"c": 0.17143,
"h": 272.2
},
"luminance": 0.17656
}Semantic roles & 50–950 ramp
primary
#576BDB
secondary
#E0D9AD
accent
#CE40E8
background
#F9F9FE
surface
#F2F1FC
border
#CCCBD5
text
#0E0D16
muted
#7E7E84