#587BB5#587BB5
#587BB5 is a mid, moderate blue. Relative luminance 0.196; OKLCH L 58.2% C 0.098 H 260.1°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).
Color values
| HEX | #587BB5 |
|---|---|
| RGB | rgb(88, 123, 181) |
| HSL | hsl(217, 39%, 53%) |
| HSV | hsv(217, 51%, 71%) |
| CMYK | cmyk(51.4%, 32%, 0%, 29%) |
| CIE-LAB | lab(51.35, 4.30, -34.44) |
| CIE-LCH | lch(51.35, 34.71, 277.12°) |
| OKLab | oklab(58.18% -0.0168 -0.0969) |
| OKLCH | oklch(58.18% 0.098 260.1) |
| XYZ | xyz(19.4451, 19.5754, 46.4609) |
| Luminance | 0.1958 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Off Blue
#5684AE
ΔE00 4.84
Windows Blue
#3778BF
ΔE00 4.86
Cornflower Blue
#5170D7
ΔE00 5.44
Dusty Blue
#5A86AD
ΔE00 5.45
Dull Blue
#49759C
ΔE00 5.61
Cool Blue
#4984B8
ΔE00 5.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#587BB5 #B59258
analogous
#58AAB5 #587BB5 #6358B5
triadic
#587BB5 #B5587B #7BB558
tetradic
#587BB5 #B558AA #B59258 #58B563
square
#587BB5 #B558AA #B59258 #58B563
split-complementary
#587BB5 #B56358 #AAB558
monochromatic
#2D4266 #405E90 #587BB5 #829DC8 #ADBEDB
Accessibility & contrast
On white
4.27
#587BB5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.92
#587BB5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #587BB5
4.92:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##587BB5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##587BB5 | 1.00 | 4.27 | 4.92 | 4.92 |
| #FFFFFF | 4.27 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.92 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.92 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#647FB7
Deuteranopia (green-blind)
#5976B4
Tritanopia (blue-blind)
#2C8890
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #587bb5; /* rgb */ color: rgb(88, 123, 181); /* oklch */ color: oklch(58.2% 0.098 260.1);
Tailwind
colors: {
custom: {
50: '#8da0cb',
500: '#587bb5',
950: '#000000',
},
}SCSS
$custom: #587bb5; $custom-light: #8da0cb; $custom-dark: #000000;
JSON
{
"hex": "#587bb5",
"rgb": {
"r": 88,
"g": 123,
"b": 181
},
"hsl": {
"h": 217.419,
"s": 38.589,
"l": 52.745
},
"oklch": {
"l": 0.5818,
"c": 0.09832,
"h": 260.1
},
"luminance": 0.19577
}Semantic roles & 50–950 ramp
primary
#587BB5
secondary
#C9B9A0
accent
#A259CF
background
#F8F9FC
surface
#F0F2F8
border
#CBCCD1
text
#0D0E13
muted
#7D7E82