#558BBB#558BBB
#558BBB is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.9% C 0.093 H 246.8°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #558BBB |
|---|---|
| RGB | rgb(85, 139, 187) |
| HSL | hsl(208, 43%, 53%) |
| HSV | hsv(208, 55%, 73%) |
| CMYK | cmyk(54.5%, 25.7%, 0%, 26.7%) |
| CIE-LAB | lab(56.07, -3.91, -30.53) |
| CIE-LCH | lch(56.07, 30.78, 262.71°) |
| OKLab | oklab(61.93% -0.0367 -0.0855) |
| OKLCH | oklch(61.93% 0.093 246.8) |
| XYZ | xyz(21.9454, 23.9826, 50.4767) |
| Luminance | 0.2398 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusty Blue
#5A86AD
ΔE00 2.57
Cool Blue
#4984B8
ΔE00 2.68
Off Blue
#5684AE
ΔE00 2.80
Faded Blue
#658CBB
ΔE00 3.20
Steel Blue
#4682B4
ΔE00 3.52
Dark Sky Blue
#448EE4
ΔE00 4.44
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#558BBB #BB8555
analogous
#55BBB8 #558BBB #5558BB
triadic
#558BBB #BB558B #8BBB55
tetradic
#558BBB #B855BB #BB8555 #58BB55
square
#558BBB #B855BB #BB8555 #58BB55
split-complementary
#558BBB #BB5558 #BBB855
monochromatic
#2B4D6B #3C6C97 #558BBB #81A9CC #ACC7DE
Accessibility & contrast
On white
3.62
#558BBB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.80
#558BBB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #558BBB
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##558BBB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##558BBB | 1.00 | 3.62 | 5.80 | 5.80 |
| #FFFFFF | 3.62 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.80 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.80 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#778CBD
Deuteranopia (green-blind)
#6982BA
Tritanopia (blue-blind)
#11969B
Achromatopsia (no color)
#868686
Design tokens & code
CSS
--color: #558bbb; /* rgb */ color: rgb(85, 139, 187); /* oklch */ color: oklch(61.9% 0.093 246.8);
Tailwind
colors: {
custom: {
50: '#8caccf',
500: '#558bbb',
950: '#000000',
},
}SCSS
$custom: #558bbb; $custom-light: #8caccf; $custom-dark: #000000;
JSON
{
"hex": "#558bbb",
"rgb": {
"r": 85,
"g": 139,
"b": 187
},
"hsl": {
"h": 208.235,
"s": 42.857,
"l": 53.333
},
"oklch": {
"l": 0.61925,
"c": 0.09307,
"h": 246.8
},
"luminance": 0.23984
}Semantic roles & 50–950 ramp
primary
#558BBB
secondary
#CCB5A0
accent
#9055D3
background
#F8FAFC
surface
#F0F4F9
border
#CBCED2
text
#0D1014
muted
#7D7F82