#557AEB#557AEB
#557AEB is a mid, vivid blue. Relative luminance 0.218; OKLCH L 61.0% C 0.175 H 267.4°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).
Color values
| HEX | #557AEB |
|---|---|
| RGB | rgb(85, 122, 235) |
| HSL | hsl(225, 79%, 63%) |
| HSV | hsv(225, 64%, 92%) |
| CMYK | cmyk(63.8%, 48.1%, 0%, 7.8%) |
| CIE-LAB | lab(53.86, 22.17, -61.10) |
| CIE-LCH | lch(53.86, 64.99, 289.94°) |
| OKLab | oklab(61.03% -0.0079 -0.175) |
| OKLCH | oklch(61.03% 0.175 267.4) |
| XYZ | xyz(25.6961, 21.8462, 81.4437) |
| Luminance | 0.2185 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.68
Cornflower
#6A79F7
ΔE00 4.03
Clear Blue
#247AFD
ΔE00 4.13
Cornflower Blue
#5170D7
ΔE00 4.29
Dodger Blue
#3E82FC
ΔE00 4.33
Soft Blue
#6488EA
ΔE00 4.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#557AEB #EBC655
analogous
#55C5EB #557AEB #7B55EB
triadic
#557AEB #EB557A #7AEB55
tetradic
#557AEB #EB55C5 #EBC655 #55EB7B
square
#557AEB #EB55C5 #EBC655 #55EB7B
split-complementary
#557AEB #EB7B55 #C5EB55
monochromatic
#153BB1 #1E4FE5 #557AEB #8CA5F1 #C3D0F8
Accessibility & contrast
On white
3.91
#557AEB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.37
#557AEB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #557AEB
5.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##557AEB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##557AEB | 1.00 | 3.91 | 5.37 | 5.37 |
| #FFFFFF | 3.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.37 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.37 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3E88EF
Deuteranopia (green-blind)
#1C7AE9
Tritanopia (blue-blind)
#0094A7
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #557aeb; /* rgb */ color: rgb(85, 122, 235); /* oklch */ color: oklch(61.0% 0.175 267.4);
Tailwind
colors: {
custom: {
50: '#93a0f2',
500: '#557aeb',
950: '#000000',
},
}SCSS
$custom: #557aeb; $custom-light: #93a0f2; $custom-dark: #000000;
JSON
{
"hex": "#557aeb",
"rgb": {
"r": 85,
"g": 122,
"b": 235
},
"hsl": {
"h": 225.2,
"s": 78.947,
"l": 62.745
},
"oklch": {
"l": 0.61026,
"c": 0.17514,
"h": 267.4
},
"luminance": 0.21849
}Semantic roles & 50–950 ramp
primary
#557AEB
secondary
#E9DCB3
accent
#A80ADB
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0E17
muted
#7E7E85