#5571CF#5571CF
#5571CF is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.4% C 0.148 H 268.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).
Color values
| HEX | #5571CF |
|---|---|
| RGB | rgb(85, 113, 207) |
| HSL | hsl(226, 56%, 57%) |
| HSV | hsv(226, 59%, 81%) |
| CMYK | cmyk(58.9%, 45.4%, 0%, 18.8%) |
| CIE-LAB | lab(49.79, 18.25, -51.83) |
| CIE-LCH | lch(49.79, 54.96, 289.40°) |
| OKLab | oklab(57.38% -0.0028 -0.1478) |
| OKLCH | oklch(57.38% 0.148 268.9) |
| XYZ | xyz(20.9101, 18.2449, 61.4391) |
| Luminance | 0.1825 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 1.11
Royal Blue
#4169E1
ΔE00 3.68
Cerulean Blue
#056EEE
ΔE00 5.83
French Blue
#436BAD
ΔE00 5.88
Deep Sky Blue
#0D75F8
ΔE00 6.54
Lightish Blue
#3D7AFD
ΔE00 6.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5571CF #CFB355
analogous
#55AECF #5571CF #7655CF
triadic
#5571CF #CF5571 #71CF55
tetradic
#5571CF #CF55AE #CFB355 #55CF76
square
#5571CF #CF55AE #CFB355 #55CF76
split-complementary
#5571CF #CF7655 #AECF55
monochromatic
#253B84 #3350B4 #5571CF #8599DC #B4C1EA
Accessibility & contrast
On white
4.52
#5571CF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.65
#5571CF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #5571CF
4.65:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5571CF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5571CF | 1.00 | 4.52 | 4.65 | 4.65 |
| #FFFFFF | 4.52 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.65 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.65 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#457CD3
Deuteranopia (green-blind)
#3371CD
Tritanopia (blue-blind)
#008696
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #5571cf; /* rgb */ color: rgb(85, 113, 207); /* oklch */ color: oklch(57.4% 0.148 268.9);
Tailwind
colors: {
custom: {
50: '#8f99de',
500: '#5571cf',
950: '#000000',
},
}SCSS
$custom: #5571cf; $custom-light: #8f99de; $custom-dark: #000000;
JSON
{
"hex": "#5571cf",
"rgb": {
"r": 85,
"g": 113,
"b": 207
},
"hsl": {
"h": 226.23,
"s": 55.963,
"l": 57.255
},
"oklch": {
"l": 0.57376,
"c": 0.14788,
"h": 268.9
},
"luminance": 0.18247
}Semantic roles & 50–950 ramp
primary
#5571CF
secondary
#D9CDA7
accent
#BD49DF
background
#F9F9FD
surface
#F2F2FB
border
#CCCCD4
text
#0D0D15
muted
#7E7E83