#537FBA#537FBA
#537FBA is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 59.1% C 0.103 H 256.1°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).
Color values
| HEX | #537FBA |
|---|---|
| RGB | rgb(83, 127, 186) |
| HSL | hsl(214, 43%, 53%) |
| HSV | hsv(214, 55%, 73%) |
| CMYK | cmyk(55.4%, 31.7%, 0%, 27.1%) |
| CIE-LAB | lab(52.47, 2.36, -35.59) |
| CIE-LCH | lch(52.47, 35.67, 273.80°) |
| OKLab | oklab(59.05% -0.0248 -0.1003) |
| OKLCH | oklch(59.05% 0.103 256.1) |
| XYZ | xyz(20.0165, 20.5613, 49.3588) |
| Luminance | 0.2056 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Off Blue
#5684AE
ΔE00 3.31
Cool Blue
#4984B8
ΔE00 3.63
Steel Blue
#4682B4
ΔE00 3.89
Windows Blue
#3778BF
ΔE00 3.94
Dusty Blue
#5A86AD
ΔE00 4.03
Faded Blue
#658CBB
ΔE00 4.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537FBA #BA8E53
analogous
#53B3BA #537FBA #5A53BA
triadic
#537FBA #BA537F #7FBA53
tetradic
#537FBA #BA53B3 #BA8E53 #53BA5A
square
#537FBA #BA53B3 #BA8E53 #53BA5A
split-complementary
#537FBA #BA5A53 #B3BA53
monochromatic
#2A4569 #3B6194 #537FBA #7FA0CC #AAC0DD
Accessibility & contrast
On white
4.11
#537FBA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.11
#537FBA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537FBA
5.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537FBA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537FBA | 1.00 | 4.11 | 5.11 | 5.11 |
| #FFFFFF | 4.11 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.11 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.11 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6783BD
Deuteranopia (green-blind)
#5A79B9
Tritanopia (blue-blind)
#0E8C94
Achromatopsia (no color)
#7D7D7D
Design tokens & code
CSS
--color: #537fba; /* rgb */ color: rgb(83, 127, 186); /* oklch */ color: oklch(59.1% 0.103 256.1);
Tailwind
colors: {
custom: {
50: '#8aa3cf',
500: '#537fba',
950: '#000000',
},
}SCSS
$custom: #537fba; $custom-light: #8aa3cf; $custom-dark: #000000;
JSON
{
"hex": "#537fba",
"rgb": {
"r": 83,
"g": 127,
"b": 186
},
"hsl": {
"h": 214.369,
"s": 42.739,
"l": 52.745
},
"oklch": {
"l": 0.59054,
"c": 0.10328,
"h": 256.1
},
"luminance": 0.20563
}Semantic roles & 50–950 ramp
primary
#537FBA
secondary
#CBB89E
accent
#9D55D3
background
#F8FAFC
surface
#F0F3F9
border
#CBCDD2
text
#0C0F14
muted
#7D7F82