#577CD6#577CD6
#577CD6 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.143 H 265.5°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #577CD6 |
|---|---|
| RGB | rgb(87, 124, 214) |
| HSL | hsl(223, 61%, 59%) |
| HSV | hsv(223, 59%, 84%) |
| CMYK | cmyk(59.3%, 42.1%, 0%, 16.1%) |
| CIE-LAB | lab(53.27, 14.22, -50.25) |
| CIE-LCH | lch(53.27, 52.22, 285.80°) |
| OKLab | oklab(60.2% -0.0113 -0.143) |
| OKLCH | oklch(60.2% 0.143 265.5) |
| XYZ | xyz(23.2716, 21.2946, 66.4892) |
| Luminance | 0.2130 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 4.18
Lightish Blue
#3D7AFD
ΔE00 4.35
Soft Blue
#6488EA
ΔE00 4.74
Clear Blue
#247AFD
ΔE00 4.95
Dodger Blue
#3E82FC
ΔE00 5.02
Deep Sky Blue
#0D75F8
ΔE00 5.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577CD6 #D6B157
analogous
#57BCD6 #577CD6 #7257D6
triadic
#577CD6 #D6577C #7CD657
tetradic
#577CD6 #D657BC #D6B157 #57D672
square
#577CD6 #D657BC #D6B157 #57D672
split-complementary
#577CD6 #D67257 #BCD657
monochromatic
#234390 #2F59C1 #577CD6 #88A2E2 #B9C9EE
Accessibility & contrast
On white
3.99
#577CD6 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#577CD6 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577CD6
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577CD6 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577CD6 | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5485D9
Deuteranopia (green-blind)
#427AD4
Tritanopia (blue-blind)
#00909E
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #577cd6; /* rgb */ color: rgb(87, 124, 214); /* oklch */ color: oklch(60.2% 0.143 265.5);
Tailwind
colors: {
custom: {
50: '#90a1e3',
500: '#577cd6',
950: '#000000',
},
}SCSS
$custom: #577cd6; $custom-light: #90a1e3; $custom-dark: #000000;
JSON
{
"hex": "#577cd6",
"rgb": {
"r": 87,
"g": 124,
"b": 214
},
"hsl": {
"h": 222.52,
"s": 60.766,
"l": 59.02
},
"oklch": {
"l": 0.60203,
"c": 0.14346,
"h": 265.5
},
"luminance": 0.21297
}Semantic roles & 50–950 ramp
primary
#577CD6
secondary
#DDCFAB
accent
#B544E4
background
#F9F9FD
surface
#F2F2FB
border
#CCCCD4
text
#0E0E15
muted
#7E7E83