#6557EE#6557EE
#6557EE is a mid, highly saturated blue. Relative luminance 0.158; OKLCH L 56.0% C 0.218 H 280.9°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).
Color values
| HEX | #6557EE |
|---|---|
| RGB | rgb(101, 87, 238) |
| HSL | hsl(246, 82%, 64%) |
| HSV | hsv(246, 63%, 93%) |
| CMYK | cmyk(57.6%, 63.4%, 0%, 6.7%) |
| CIE-LAB | lab(46.65, 46.87, -74.41) |
| CIE-LCH | lch(46.65, 87.95, 302.21°) |
| OKLab | oklab(55.97% 0.0412 -0.2141) |
| OKLCH | oklch(55.97% 0.218 280.9) |
| XYZ | xyz(24.2028, 15.7545, 82.6379) |
| Luminance | 0.1576 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Light Indigo
#6D5ACF
ΔE00 4.35
Dark Periwinkle
#665FD1
ΔE00 4.37
Slate Blue
#6A5ACD
ΔE00 4.52
Warm Blue
#4B57DB
ΔE00 4.75
Purpleish Blue
#6140EF
ΔE00 5.62
Purpley
#8756E4
ΔE00 5.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6557EE #E0EE57
analogous
#5794EE #6557EE #B057EE
triadic
#6557EE #EE6557 #57EE65
tetradic
#6557EE #EE5794 #E0EE57 #57EEB0
square
#6557EE #EE5794 #E0EE57 #57EEB0
split-complementary
#6557EE #EEB057 #94EE57
monochromatic
#2213B8 #321FE8 #6557EE #988FF4 #CBC6F9
Accessibility & contrast
On white
5.06
#6557EE on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.15
#6557EE on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #6557EE
5.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6557EE | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##6557EE | 1.00 | 5.06 | 4.15 | 5.06 |
| #FFFFFF | 5.06 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.15 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.06 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0074F3
Deuteranopia (green-blind)
#0069EB
Tritanopia (blue-blind)
#0B7D9B
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #6557ee; /* rgb */ color: rgb(101, 87, 238); /* oklch */ color: oklch(56.0% 0.218 280.9);
Tailwind
colors: {
custom: {
50: '#9d87f5',
500: '#6557ee',
950: '#000000',
},
}SCSS
$custom: #6557ee; $custom-light: #9d87f5; $custom-dark: #000000;
JSON
{
"hex": "#6557ee",
"rgb": {
"r": 101,
"g": 87,
"b": 238
},
"hsl": {
"h": 245.563,
"s": 81.622,
"l": 63.725
},
"oklch": {
"l": 0.55973,
"c": 0.21798,
"h": 280.9
},
"luminance": 0.15756
}Semantic roles & 50–950 ramp
primary
#6557EE
secondary
#E6EBB6
accent
#DE08CA
background
#FAF8FF
surface
#F4F0FE
border
#CECBD6
text
#100B17
muted
#7F7C85