#577FE0#577FE0
#577FE0 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.4% C 0.154 H 265.3°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).
Color values
| HEX | #577FE0 |
|---|---|
| RGB | rgb(87, 127, 224) |
| HSL | hsl(222, 69%, 61%) |
| HSV | hsv(222, 61%, 88%) |
| CMYK | cmyk(61.2%, 43.3%, 0%, 12.2%) |
| CIE-LAB | lab(54.64, 15.74, -53.69) |
| CIE-LCH | lch(54.64, 55.95, 286.34°) |
| OKLab | oklab(61.44% -0.0126 -0.1531) |
| OKLCH | oklch(61.44% 0.154 265.3) |
| XYZ | xyz(24.9698, 22.5846, 73.5500) |
| Luminance | 0.2259 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Soft Blue
#6488EA
ΔE00 3.39
Lightish Blue
#3D7AFD
ΔE00 3.54
Dodger Blue
#3E82FC
ΔE00 3.71
Clear Blue
#247AFD
ΔE00 4.33
Deep Sky Blue
#0D75F8
ΔE00 5.32
Cornflower Blue
#5170D7
ΔE00 5.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577FE0 #E0B857
analogous
#57C3E0 #577FE0 #7357E0
triadic
#577FE0 #E0577F #7FE057
tetradic
#577FE0 #E057C3 #E0B857 #57E073
square
#577FE0 #E057C3 #E0B857 #57E073
split-complementary
#577FE0 #E07357 #C3E057
monochromatic
#1D439F #2759D3 #577FE0 #8BA6EA #BECEF3
Accessibility & contrast
On white
3.81
#577FE0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.52
#577FE0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577FE0
5.52:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577FE0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577FE0 | 1.00 | 3.81 | 5.52 | 5.52 |
| #FFFFFF | 3.81 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.52 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.52 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5289E4
Deuteranopia (green-blind)
#3E7DDE
Tritanopia (blue-blind)
#0095A4
Achromatopsia (no color)
#838383
Design tokens & code
CSS
--color: #577fe0; /* rgb */ color: rgb(87, 127, 224); /* oklch */ color: oklch(61.4% 0.154 265.3);
Tailwind
colors: {
custom: {
50: '#92a3ea',
500: '#577fe0',
950: '#000000',
},
}SCSS
$custom: #577fe0; $custom-light: #92a3ea; $custom-dark: #000000;
JSON
{
"hex": "#577fe0",
"rgb": {
"r": 87,
"g": 127,
"b": 224
},
"hsl": {
"h": 222.482,
"s": 68.844,
"l": 60.98
},
"oklch": {
"l": 0.61439,
"c": 0.1536,
"h": 265.3
},
"luminance": 0.22587
}Semantic roles & 50–950 ramp
primary
#577FE0
secondary
#E3D4B0
accent
#9A15D1
background
#F9FAFE
surface
#F2F3FD
border
#CCCDD5
text
#0E0F16
muted
#7E7F84