#577AFF#577AFF
#577AFF is a light, highly saturated blue. Relative luminance 0.232; OKLCH L 62.5% C 0.201 H 268.8°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).
Color values
| HEX | #577AFF |
|---|---|
| RGB | rgb(87, 122, 255) |
| HSL | hsl(228, 100%, 67%) |
| HSV | hsv(228, 66%, 100%) |
| CMYK | cmyk(65.9%, 52.2%, 0%, 0%) |
| CIE-LAB | lab(55.24, 29.28, -69.97) |
| CIE-LCH | lch(55.24, 75.85, 292.71°) |
| OKLab | oklab(62.5% -0.0042 -0.201) |
| OKLCH | oklch(62.5% 0.201 268.8) |
| XYZ | xyz(28.9338, 23.1626, 97.5344) |
| Luminance | 0.2316 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 2.81
Lightish Blue
#3D7AFD
ΔE00 3.04
Dodger Blue
#3E82FC
ΔE00 4.75
Clear Blue
#247AFD
ΔE00 4.90
Soft Blue
#6488EA
ΔE00 4.93
Deep Sky Blue
#0D75F8
ΔE00 5.97
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577AFF #FFDC57
analogous
#57CEFF #577AFF #8857FF
triadic
#577AFF #FF577A #7AFF57
tetradic
#577AFF #FF57CE #FFDC57 #57FF88
square
#577AFF #FF57CE #FFDC57 #57FF88
split-complementary
#577AFF #FF8857 #CEFF57
monochromatic
#002EDC #1A4AFF #577AFF #94AAFF #D1DBFF
Accessibility & contrast
On white
3.73
#577AFF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.63
#577AFF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577AFF
5.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577AFF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577AFF | 1.00 | 3.73 | 5.63 | 5.63 |
| #FFFFFF | 3.73 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#208CFF
Deuteranopia (green-blind)
#007DFC
Tritanopia (blue-blind)
#009AB1
Achromatopsia (no color)
#848484
Design tokens & code
CSS
--color: #577aff; /* rgb */ color: rgb(87, 122, 255); /* oklch */ color: oklch(62.5% 0.201 268.8);
Tailwind
colors: {
custom: {
50: '#97a0ff',
500: '#577aff',
950: '#000000',
},
}SCSS
$custom: #577aff; $custom-light: #97a0ff; $custom-dark: #000000;
JSON
{
"hex": "#577aff",
"rgb": {
"r": 87,
"g": 122,
"b": 255
},
"hsl": {
"h": 227.5,
"s": 100,
"l": 67.059
},
"oklch": {
"l": 0.62503,
"c": 0.20107,
"h": 268.8
},
"luminance": 0.23165
}Semantic roles & 50–950 ramp
primary
#577AFF
secondary
#F4E8BE
accent
#B600E6
background
#FAF9FF
surface
#F4F2FF
border
#CECCD7
text
#0F0E18
muted
#7F7E86