#587DB1#587DB1
#587DB1 is a mid, moderate blue. Relative luminance 0.199; OKLCH L 58.4% C 0.091 H 257.0°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).
Color values
| HEX | #587DB1 |
|---|---|
| RGB | rgb(88, 125, 177) |
| HSL | hsl(215, 36%, 52%) |
| HSV | hsv(215, 50%, 69%) |
| CMYK | cmyk(50.3%, 29.4%, 0%, 30.6%) |
| CIE-LAB | lab(51.74, 1.85, -31.53) |
| CIE-LCH | lch(51.74, 31.59, 273.36°) |
| OKLab | oklab(58.42% -0.0204 -0.0884) |
| OKLCH | oklch(58.42% 0.091 257) |
| XYZ | xyz(19.2912, 19.9149, 44.4139) |
| Luminance | 0.1992 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Off Blue
#5684AE
ΔE00 3.83
Dusty Blue
#5A86AD
ΔE00 4.47
Windows Blue
#3778BF
ΔE00 4.63
Cool Blue
#4984B8
ΔE00 4.72
Steel Blue
#4682B4
ΔE00 4.79
Slate Blue (survey)
#5B7C99
ΔE00 5.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#587DB1 #B18C58
analogous
#58AAB1 #587DB1 #5F58B1
triadic
#587DB1 #B1587D #7DB158
tetradic
#587DB1 #B158AA #B18C58 #58B15F
square
#587DB1 #B158AA #B18C58 #58B15F
split-complementary
#587DB1 #B15F58 #AAB158
monochromatic
#2D4361 #41608B #587DB1 #829DC4 #ABBED8
Accessibility & contrast
On white
4.21
#587DB1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.98
#587DB1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #587DB1
4.98:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##587DB1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##587DB1 | 1.00 | 4.21 | 4.98 | 4.98 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.98 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.98 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6980B3
Deuteranopia (green-blind)
#5E77B0
Tritanopia (blue-blind)
#2F888F
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #587db1; /* rgb */ color: rgb(88, 125, 177); /* oklch */ color: oklch(58.4% 0.091 257.0);
Tailwind
colors: {
custom: {
50: '#8ca2c8',
500: '#587db1',
950: '#000000',
},
}SCSS
$custom: #587db1; $custom-light: #8ca2c8; $custom-dark: #000000;
JSON
{
"hex": "#587db1",
"rgb": {
"r": 88,
"g": 125,
"b": 177
},
"hsl": {
"h": 215.056,
"s": 36.327,
"l": 51.961
},
"oklch": {
"l": 0.58421,
"c": 0.09076,
"h": 257
},
"luminance": 0.19916
}Semantic roles & 50–950 ramp
primary
#587DB1
secondary
#C6B69F
accent
#9D5BCC
background
#F8F9FC
surface
#F0F2F8
border
#CBCCD1
text
#0C0F13
muted
#7D7E82