#578BCC#578BCC
#578BCC is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.9% C 0.113 H 254.7°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).
Color values
| HEX | #578BCC |
|---|---|
| RGB | rgb(87, 139, 204) |
| HSL | hsl(213, 53%, 57%) |
| HSV | hsv(213, 57%, 80%) |
| CMYK | cmyk(57.4%, 31.9%, 0%, 20%) |
| CIE-LAB | lab(56.93, 1.94, -38.81) |
| CIE-LCH | lch(56.93, 38.86, 272.86°) |
| OKLab | oklab(62.88% -0.0299 -0.1095) |
| OKLCH | oklch(62.88% 0.113 254.7) |
| XYZ | xyz(24.0583, 24.8491, 60.6436) |
| Luminance | 0.2485 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.76
Dark Sky Blue
#448EE4
ΔE00 2.91
Cool Blue
#4984B8
ΔE00 4.21
Dusty Blue
#5A86AD
ΔE00 4.47
Off Blue
#5684AE
ΔE00 4.47
Cornflowerblue
#6495ED
ΔE00 5.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#578BCC #CC9857
analogous
#57C6CC #578BCC #5D57CC
triadic
#578BCC #CC578B #8BCC57
tetradic
#578BCC #CC57C6 #CC9857 #57CC5D
square
#578BCC #CC57C6 #CC9857 #57CC5D
split-complementary
#578BCC #CC5D57 #C6CC57
monochromatic
#274F81 #366CB0 #578BCC #86ABDA #B5CCE9
Accessibility & contrast
On white
3.52
#578BCC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.97
#578BCC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #578BCC
5.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##578BCC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##578BCC | 1.00 | 3.52 | 5.97 | 5.97 |
| #FFFFFF | 3.52 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.97 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.97 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#708FCF
Deuteranopia (green-blind)
#6184CB
Tritanopia (blue-blind)
#009AA2
Achromatopsia (no color)
#898989
Design tokens & code
CSS
--color: #578bcc; /* rgb */ color: rgb(87, 139, 204); /* oklch */ color: oklch(62.9% 0.113 254.7);
Tailwind
colors: {
custom: {
50: '#8facdc',
500: '#578bcc',
950: '#000000',
},
}SCSS
$custom: #578bcc; $custom-light: #8facdc; $custom-dark: #000000;
JSON
{
"hex": "#578bcc",
"rgb": {
"r": 87,
"g": 139,
"b": 204
},
"hsl": {
"h": 213.333,
"s": 53.425,
"l": 57.059
},
"oklch": {
"l": 0.62875,
"c": 0.11348,
"h": 254.7
},
"luminance": 0.24851
}Semantic roles & 50–950 ramp
primary
#578BCC
secondary
#D7C2A8
accent
#9C4BDD
background
#F9FAFD
surface
#F1F4FB
border
#CBCED4
text
#0D1015
muted
#7E7F83