#577FE9#577FE9
#577FE9 is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.0% C 0.166 H 266.1°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).
Color values
| HEX | #577FE9 |
|---|---|
| RGB | rgb(87, 127, 233) |
| HSL | hsl(224, 77%, 63%) |
| HSV | hsv(224, 63%, 91%) |
| CMYK | cmyk(62.7%, 45.5%, 0%, 8.6%) |
| CIE-LAB | lab(55.16, 18.77, -57.89) |
| CIE-LCH | lch(55.16, 60.86, 287.97°) |
| OKLab | oklab(62% -0.0111 -0.1654) |
| OKLCH | oklch(62% 0.166 266.1) |
| XYZ | xyz(26.2228, 23.0858, 80.1491) |
| Luminance | 0.2309 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.95
Soft Blue
#6488EA
ΔE00 3.03
Dodger Blue
#3E82FC
ΔE00 3.30
Clear Blue
#247AFD
ΔE00 4.10
Cornflower
#6A79F7
ΔE00 4.83
Azure
#007FFF
ΔE00 5.28
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577FE9 #E9C157
analogous
#57C8E9 #577FE9 #7857E9
triadic
#577FE9 #E9577F #7FE957
tetradic
#577FE9 #E957C8 #E9C157 #57E978
square
#577FE9 #E957C8 #E9C157 #57E978
split-complementary
#577FE9 #E97857 #C8E957
monochromatic
#1740AF #2156E2 #577FE9 #8DA8F0 #C3D1F7
Accessibility & contrast
On white
3.74
#577FE9 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.62
#577FE9 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577FE9
5.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577FE9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577FE9 | 1.00 | 3.74 | 5.62 | 5.62 |
| #FFFFFF | 3.74 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4B8BED
Deuteranopia (green-blind)
#327EE7
Tritanopia (blue-blind)
#0097A9
Achromatopsia (no color)
#848484
Design tokens & code
CSS
--color: #577fe9; /* rgb */ color: rgb(87, 127, 233); /* oklch */ color: oklch(62.0% 0.166 266.1);
Tailwind
colors: {
custom: {
50: '#93a3f1',
500: '#577fe9',
950: '#000000',
},
}SCSS
$custom: #577fe9; $custom-light: #93a3f1; $custom-dark: #000000;
JSON
{
"hex": "#577fe9",
"rgb": {
"r": 87,
"g": 127,
"b": 233
},
"hsl": {
"h": 223.562,
"s": 76.842,
"l": 62.745
},
"oklch": {
"l": 0.62004,
"c": 0.1658,
"h": 266.1
},
"luminance": 0.23088
}Semantic roles & 50–950 ramp
primary
#577FE9
secondary
#E8DAB3
accent
#A10CD9
background
#F9FAFE
surface
#F2F3FD
border
#CCCDD5
text
#0E0F17
muted
#7E7F85