#556DCA#556DCA
#556DCA is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.2% C 0.146 H 270.3°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).
Color values
| HEX | #556DCA |
|---|---|
| RGB | rgb(85, 109, 202) |
| HSL | hsl(228, 52%, 56%) |
| HSV | hsv(228, 58%, 79%) |
| CMYK | cmyk(57.9%, 46%, 0%, 20.8%) |
| CIE-LAB | lab(48.42, 19.07, -51.16) |
| CIE-LCH | lch(48.42, 54.60, 290.44°) |
| OKLab | oklab(56.24% 0.0007 -0.1459) |
| OKLCH | oklch(56.24% 0.146 270.3) |
| XYZ | xyz(19.8721, 17.1313, 58.1251) |
| Luminance | 0.1713 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 2.12
Royal Blue
#4169E1
ΔE00 3.55
French Blue
#436BAD
ΔE00 5.35
Cerulean Blue
#056EEE
ΔE00 6.49
Dark Periwinkle
#665FD1
ΔE00 6.57
Bright Blue
#0165FC
ΔE00 6.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#556DCA #CAB255
analogous
#55A8CA #556DCA #7855CA
triadic
#556DCA #CA556D #6DCA55
tetradic
#556DCA #CA55A8 #CAB255 #55CA78
square
#556DCA #CA55A8 #CAB255 #55CA78
split-complementary
#556DCA #CA7855 #A8CA55
monochromatic
#27397D #364EAC #556DCA #8495D9 #B2BDE7
Accessibility & contrast
On white
4.74
#556DCA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.43
#556DCA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #556DCA
4.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##556DCA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##556DCA | 1.00 | 4.74 | 4.43 | 4.74 |
| #FFFFFF | 4.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4278CD
Deuteranopia (green-blind)
#316EC8
Tritanopia (blue-blind)
#008292
Achromatopsia (no color)
#737373
Design tokens & code
CSS
--color: #556dca; /* rgb */ color: rgb(85, 109, 202); /* oklch */ color: oklch(56.2% 0.146 270.3);
Tailwind
colors: {
custom: {
50: '#8e96db',
500: '#556dca',
950: '#000000',
},
}SCSS
$custom: #556dca; $custom-light: #8e96db; $custom-dark: #000000;
JSON
{
"hex": "#556dca",
"rgb": {
"r": 85,
"g": 109,
"b": 202
},
"hsl": {
"h": 227.692,
"s": 52.466,
"l": 56.275
},
"oklch": {
"l": 0.56237,
"c": 0.14592,
"h": 270.3
},
"luminance": 0.17133
}Semantic roles & 50–950 ramp
primary
#556DCA
secondary
#D5CCA5
accent
#BE4CDC
background
#F9F9FD
surface
#F1F1FB
border
#CBCBD4
text
#0D0D15
muted
#7E7E83