#577FAD#577FAD
#577FAD is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.084 H 252.6°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).
Color values
| HEX | #577FAD |
|---|---|
| RGB | rgb(87, 127, 173) |
| HSL | hsl(212, 34%, 51%) |
| HSV | hsv(212, 50%, 68%) |
| CMYK | cmyk(49.7%, 26.6%, 0%, 32.2%) |
| CIE-LAB | lab(52.09, -0.81, -28.69) |
| CIE-LCH | lch(52.09, 28.70, 268.38°) |
| OKLab | oklab(58.62% -0.0251 -0.0802) |
| OKLCH | oklch(58.62% 0.084 252.6) |
| XYZ | xyz(19.0601, 20.2207, 42.4257) |
| Luminance | 0.2022 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Off Blue
#5684AE
ΔE00 2.46
Dusty Blue
#5A86AD
ΔE00 3.17
Cool Blue
#4984B8
ΔE00 3.55
Steel Blue
#4682B4
ΔE00 3.56
Slate Blue (survey)
#5B7C99
ΔE00 4.24
Steel Blue (survey)
#5A7D9A
ΔE00 4.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#577FAD #AD8557
analogous
#57AAAD #577FAD #5A57AD
triadic
#577FAD #AD577F #7FAD57
tetradic
#577FAD #AD57AA #AD8557 #57AD5A
square
#577FAD #AD57AA #AD8557 #57AD5A
split-complementary
#577FAD #AD5A57 #AAAD57
monochromatic
#2D435C #416186 #577FAD #809EC1 #A9BED5
Accessibility & contrast
On white
4.16
#577FAD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.04
#577FAD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #577FAD
5.04:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##577FAD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##577FAD | 1.00 | 4.16 | 5.04 | 5.04 |
| #FFFFFF | 4.16 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.04 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.04 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6D81AF
Deuteranopia (green-blind)
#6278AC
Tritanopia (blue-blind)
#2F898F
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #577fad; /* rgb */ color: rgb(87, 127, 173); /* oklch */ color: oklch(58.6% 0.084 252.6);
Tailwind
colors: {
custom: {
50: '#8ba3c5',
500: '#577fad',
950: '#000000',
},
}SCSS
$custom: #577fad; $custom-light: #8ba3c5; $custom-dark: #000000;
JSON
{
"hex": "#577fad",
"rgb": {
"r": 87,
"g": 127,
"b": 173
},
"hsl": {
"h": 212.093,
"s": 34.4,
"l": 50.98
},
"oklch": {
"l": 0.58619,
"c": 0.08407,
"h": 252.6
},
"luminance": 0.20222
}Semantic roles & 50–950 ramp
primary
#577FAD
secondary
#C3B19D
accent
#985DCA
background
#F8FAFC
surface
#F0F3F8
border
#CBCDD1
text
#0C0F13
muted
#7D7F82