#577DF7#577DF7
#577DF7 is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.5% C 0.187 H 267.7°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #577DF7 |
|---|---|
| RGB | rgb(87, 125, 247) |
| HSL | hsl(226, 91%, 65%) |
| HSV | hsv(226, 65%, 97%) |
| CMYK | cmyk(64.8%, 49.4%, 0%, 3.1%) |
| CIE-LAB | lab(55.49, 24.74, -65.15) |
| CIE-LCH | lch(55.49, 69.68, 290.79°) |
| OKLab | oklab(62.53% -0.0075 -0.1868) |
| OKLCH | oklch(62.53% 0.187 267.7) |
| XYZ | xyz(28.0468, 23.4063, 91.0175) |
| Luminance | 0.2341 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.58
Cornflower
#6A79F7
ΔE00 3.53
Dodger Blue
#3E82FC
ΔE00 3.72
Soft Blue
#6488EA
ΔE00 3.73
Clear Blue
#247AFD
ΔE00 4.31
Deep Sky Blue
#0D75F8
ΔE00 5.58
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577DF7 #F7D157
analogous
#57CDF7 #577DF7 #8157F7
triadic
#577DF7 #F7577D #7DF757
tetradic
#577DF7 #F757CD #F7D157 #57F781
square
#577DF7 #F757CD #F7D157 #57F781
split-complementary
#577DF7 #F78157 #CDF757
monochromatic
#0A37CA #1D50F4 #577DF7 #91AAFA #CCD7FD
Accessibility & contrast
On white
3.70
#577DF7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.68
#577DF7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577DF7
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577DF7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577DF7 | 1.00 | 3.70 | 5.68 | 5.68 |
| #FFFFFF | 3.70 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#388DFB
Deuteranopia (green-blind)
#007EF4
Tritanopia (blue-blind)
#0099AE
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #577df7; /* rgb */ color: rgb(87, 125, 247); /* oklch */ color: oklch(62.5% 0.187 267.7);
Tailwind
colors: {
custom: {
50: '#96a2fb',
500: '#577df7',
950: '#000000',
},
}SCSS
$custom: #577df7; $custom-light: #96a2fb; $custom-dark: #000000;
JSON
{
"hex": "#577df7",
"rgb": {
"r": 87,
"g": 125,
"b": 247
},
"hsl": {
"h": 225.75,
"s": 90.909,
"l": 65.49
},
"oklch": {
"l": 0.62527,
"c": 0.18695,
"h": 267.7
},
"luminance": 0.23409
}Semantic roles & 50–950 ramp
primary
#577DF7
secondary
#F0E3BA
accent
#AF00E6
background
#F9F9FF
surface
#F2F2FF
border
#CCCCD7
text
#0F0F17
muted
#7E7E85