#557CD8#557CD8
#557CD8 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.147 H 265.0°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #557CD8 |
|---|---|
| RGB | rgb(85, 124, 216) |
| HSL | hsl(222, 63%, 59%) |
| HSV | hsv(222, 61%, 85%) |
| CMYK | cmyk(60.6%, 42.6%, 0%, 15.3%) |
| CIE-LAB | lab(53.28, 14.51, -51.37) |
| CIE-LCH | lch(53.28, 53.38, 285.77°) |
| OKLab | oklab(60.22% -0.0128 -0.1463) |
| OKLCH | oklch(60.22% 0.147 265) |
| XYZ | xyz(23.3444, 21.3024, 67.8340) |
| Luminance | 0.2130 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 4.05
Cornflower Blue
#5170D7
ΔE00 4.23
Clear Blue
#247AFD
ΔE00 4.60
Soft Blue
#6488EA
ΔE00 4.71
Dodger Blue
#3E82FC
ΔE00 4.71
Deep Sky Blue
#0D75F8
ΔE00 5.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#557CD8 #D8B155
analogous
#55BED8 #557CD8 #7055D8
triadic
#557CD8 #D8557C #7CD855
tetradic
#557CD8 #D855BE #D8B155 #55D870
square
#557CD8 #D855BE #D8B155 #55D870
split-complementary
#557CD8 #D87055 #BED855
monochromatic
#214391 #2D59C3 #557CD8 #87A2E3 #B9C9EF
Accessibility & contrast
On white
3.99
#557CD8 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#557CD8 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #557CD8
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##557CD8 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##557CD8 | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5286DC
Deuteranopia (green-blind)
#3F7AD6
Tritanopia (blue-blind)
#00919F
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #557cd8; /* rgb */ color: rgb(85, 124, 216); /* oklch */ color: oklch(60.2% 0.147 265.0);
Tailwind
colors: {
custom: {
50: '#90a1e4',
500: '#557cd8',
950: '#000000',
},
}SCSS
$custom: #557cd8; $custom-light: #90a1e4; $custom-dark: #000000;
JSON
{
"hex": "#557cd8",
"rgb": {
"r": 85,
"g": 124,
"b": 216
},
"hsl": {
"h": 222.137,
"s": 62.679,
"l": 59.02
},
"oklch": {
"l": 0.60218,
"c": 0.14691,
"h": 265
},
"luminance": 0.21304
}Semantic roles & 50–950 ramp
primary
#557CD8
secondary
#DECFAB
accent
#B542E6
background
#F9F9FE
surface
#F2F2FC
border
#CCCCD5
text
#0D0E16
muted
#7E7E84