#5BB9EF#5BB9EF
#5BB9EF is a light, moderate cyan. Relative luminance 0.432; OKLCH L 75.0% C 0.118 H 236.5°. Best body text is #000000 at 9.63:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB9EF |
|---|---|
| RGB | rgb(91, 185, 239) |
| HSL | hsl(202, 82%, 65%) |
| HSV | hsv(202, 62%, 94%) |
| CMYK | cmyk(61.9%, 22.6%, 0%, 6.3%) |
| CIE-LAB | lab(71.66, -11.97, -35.17) |
| CIE-LCH | lch(71.66, 37.15, 251.21°) |
| OKLab | oklab(75.03% -0.0652 -0.0986) |
| OKLCH | oklch(75.03% 0.118 236.5) |
| XYZ | xyz(37.2374, 43.1504, 88.0110) |
| Luminance | 0.4315 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 3.92
Lightblue (survey)
#7BC8F6
ΔE00 4.59
Sky Blue (survey)
#75BBFD
ΔE00 5.23
Sky
#82CAFC
ΔE00 5.42
Lightskyblue
#87CEFA
ΔE00 6.35
Bright Sky Blue
#02CCFE
ΔE00 7.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB9EF #EF915B
analogous
#5BEFDB #5BB9EF #5B6FEF
triadic
#5BB9EF #EF5BB9 #B9EF5B
tetradic
#5BB9EF #DB5BEF #EF915B #6FEF5B
square
#5BB9EF #DB5BEF #EF915B #6FEF5B
split-complementary
#5BB9EF #EF5B6F #EFDB5B
monochromatic
#127FBD #23A1EA #5BB9EF #93D1F4 #CBE9FA
Accessibility & contrast
On white
2.18
#5BB9EF on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
9.63
#5BB9EF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB9EF
9.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB9EF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB9EF | 1.00 | 2.18 | 9.63 | 9.63 |
| #FFFFFF | 2.18 | 1.00 | 21.00 | 21.00 |
| #000000 | 9.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 9.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#A0B8F2
Deuteranopia (green-blind)
#8BA9EE
Tritanopia (blue-blind)
#00C7CB
Achromatopsia (no color)
#B0B0B0
Design tokens & code
CSS
--color: #5bb9ef; /* rgb */ color: rgb(91, 185, 239); /* oklch */ color: oklch(75.0% 0.118 236.5);
Tailwind
colors: {
custom: {
50: '#96cef4',
500: '#5bb9ef',
950: '#000000',
},
}SCSS
$custom: #5bb9ef; $custom-light: #96cef4; $custom-dark: #000000;
JSON
{
"hex": "#5bb9ef",
"rgb": {
"r": 91,
"g": 185,
"b": 239
},
"hsl": {
"h": 201.892,
"s": 82.222,
"l": 64.706
},
"oklch": {
"l": 0.75034,
"c": 0.11823,
"h": 236.5
},
"luminance": 0.43154
}Semantic roles & 50–950 ramp
primary
#5BB9EF
secondary
#ECCCBA
accent
#5607DF
background
#F9FCFE
surface
#F2F9FD
border
#CCD2D5
text
#0F1317
muted
#7E8285