#537CB4#537CB4
#537CB4 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 58.1% C 0.098 H 256.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #537CB4 |
|---|---|
| RGB | rgb(83, 124, 180) |
| HSL | hsl(215, 39%, 52%) |
| HSV | hsv(215, 54%, 71%) |
| CMYK | cmyk(53.9%, 31.1%, 0%, 29.4%) |
| CIE-LAB | lab(51.32, 2.22, -33.94) |
| CIE-LCH | lch(51.32, 34.01, 273.75°) |
| OKLab | oklab(58.07% -0.023 -0.0955) |
| OKLCH | oklch(58.07% 0.098 256.4) |
| XYZ | xyz(19.0103, 19.5481, 45.9426) |
| Luminance | 0.1955 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 3.70
Off Blue
#5684AE
ΔE00 3.89
Steel Blue
#4682B4
ΔE00 4.40
Cool Blue
#4984B8
ΔE00 4.40
Dusty Blue
#5A86AD
ΔE00 4.66
Dull Blue
#49759C
ΔE00 4.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CB4 #B48B53
analogous
#53ADB4 #537CB4 #5B53B4
triadic
#537CB4 #B4537C #7CB453
tetradic
#537CB4 #B453AD #B48B53 #53B45B
square
#537CB4 #B453AD #B48B53 #53B45B
split-complementary
#537CB4 #B45B53 #ADB453
monochromatic
#2B4262 #3D5F8D #537CB4 #7E9CC7 #A8BDD9
Accessibility & contrast
On white
4.28
#537CB4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.91
#537CB4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CB4
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CB4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CB4 | 1.00 | 4.28 | 4.91 | 4.91 |
| #FFFFFF | 4.28 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.91 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.91 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#667FB6
Deuteranopia (green-blind)
#5A76B3
Tritanopia (blue-blind)
#1C8990
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #537cb4; /* rgb */ color: rgb(83, 124, 180); /* oklch */ color: oklch(58.1% 0.098 256.4);
Tailwind
colors: {
custom: {
50: '#8aa1ca',
500: '#537cb4',
950: '#000000',
},
}SCSS
$custom: #537cb4; $custom-light: #8aa1ca; $custom-dark: #000000;
JSON
{
"hex": "#537cb4",
"rgb": {
"r": 83,
"g": 124,
"b": 180
},
"hsl": {
"h": 214.639,
"s": 39.271,
"l": 51.569
},
"oklch": {
"l": 0.58068,
"c": 0.09821,
"h": 256.4
},
"luminance": 0.1955
}Semantic roles & 50–950 ramp
primary
#537CB4
secondary
#C7B59C
accent
#9D59CF
background
#F8F9FC
surface
#F0F2F8
border
#CBCCD1
text
#0C0E13
muted
#7D7E82