#587BC5#587BC5
#587BC5 is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.1% C 0.121 H 263.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).
Color values
| HEX | #587BC5 |
|---|---|
| RGB | rgb(88, 123, 197) |
| HSL | hsl(221, 48%, 56%) |
| HSV | hsv(221, 55%, 77%) |
| CMYK | cmyk(55.3%, 37.6%, 0%, 22.7%) |
| CIE-LAB | lab(52.14, 9.43, -42.38) |
| CIE-LCH | lch(52.14, 43.42, 282.54°) |
| OKLab | oklab(59.05% -0.0128 -0.12) |
| OKLCH | oklch(59.05% 0.121 263.9) |
| XYZ | xyz(21.1821, 20.2702, 55.6088) |
| Luminance | 0.2027 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 4.37
Windows Blue
#3778BF
ΔE00 5.47
Off Blue
#5684AE
ΔE00 5.55
Dusty Blue
#5A86AD
ΔE00 6.01
Faded Blue
#658CBB
ΔE00 6.05
Lightish Blue
#3D7AFD
ΔE00 6.09
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#587BC5 #C5A258
analogous
#58B1C5 #587BC5 #6B58C5
triadic
#587BC5 #C5587B #7BC558
tetradic
#587BC5 #C558B1 #C5A258 #58C56B
square
#587BC5 #C558B1 #C5A258 #58C56B
split-complementary
#587BC5 #C56B58 #B1C558
monochromatic
#2A4379 #3A5DA6 #587BC5 #859FD5 #B3C3E5
Accessibility & contrast
On white
4.15
#587BC5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.05
#587BC5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #587BC5
5.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##587BC5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##587BC5 | 1.00 | 4.15 | 5.05 | 5.05 |
| #FFFFFF | 4.15 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D82C8
Deuteranopia (green-blind)
#4F78C3
Tritanopia (blue-blind)
#158B96
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #587bc5; /* rgb */ color: rgb(88, 123, 197); /* oklch */ color: oklch(59.1% 0.121 263.9);
Tailwind
colors: {
custom: {
50: '#8fa0d7',
500: '#587bc5',
950: '#000000',
},
}SCSS
$custom: #587bc5; $custom-light: #8fa0d7; $custom-dark: #000000;
JSON
{
"hex": "#587bc5",
"rgb": {
"r": 88,
"g": 123,
"b": 197
},
"hsl": {
"h": 220.734,
"s": 48.444,
"l": 55.882
},
"oklch": {
"l": 0.5905,
"c": 0.12066,
"h": 263.9
},
"luminance": 0.20272
}Semantic roles & 50–950 ramp
primary
#587BC5
secondary
#D3C4A6
accent
#AC50D8
background
#F9F9FD
surface
#F1F2FA
border
#CBCCD3
text
#0D0E14
muted
#7E7E83