#5BB5E5#5BB5E5
#5BB5E5 is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.7% C 0.111 H 234.3°. Best body text is #000000 at 9.19:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB5E5 |
|---|---|
| RGB | rgb(91, 181, 229) |
| HSL | hsl(201, 73%, 63%) |
| HSV | hsv(201, 60%, 90%) |
| CMYK | cmyk(60.3%, 21%, 0%, 10.2%) |
| CIE-LAB | lab(70.12, -12.92, -32.11) |
| CIE-LCH | lch(70.12, 34.61, 248.08°) |
| OKLab | oklab(73.69% -0.0645 -0.0898) |
| OKLCH | oklch(73.69% 0.111 234.3) |
| XYZ | xyz(34.9757, 40.9256, 80.1698) |
| Luminance | 0.4093 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 4.54
Lightblue (survey)
#7BC8F6
ΔE00 5.49
Sky Blue (survey)
#75BBFD
ΔE00 6.33
Sky
#82CAFC
ΔE00 6.56
Lightskyblue
#87CEFA
ΔE00 7.25
Bright Sky Blue
#02CCFE
ΔE00 7.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB5E5 #E58B5B
analogous
#5BE5D0 #5BB5E5 #5B70E5
triadic
#5BB5E5 #E55BB5 #B5E55B
tetradic
#5BB5E5 #D05BE5 #E58B5B #70E55B
square
#5BB5E5 #D05BE5 #E58B5B #70E55B
split-complementary
#5BB5E5 #E55B70 #E5D05B
monochromatic
#1B79AB #269DDD #5BB5E5 #90CDED #C5E5F6
Accessibility & contrast
On white
2.29
#5BB5E5 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
9.19
#5BB5E5 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB5E5
9.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB5E5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB5E5 | 1.00 | 2.29 | 9.19 | 9.19 |
| #FFFFFF | 2.29 | 1.00 | 21.00 | 21.00 |
| #000000 | 9.19 | 21.00 | 1.00 | 1.00 |
| ##000000 | 9.19 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#9EB3E7
Deuteranopia (green-blind)
#8BA5E4
Tritanopia (blue-blind)
#00C2C5
Achromatopsia (no color)
#ABABAB
Design tokens & code
CSS
--color: #5bb5e5; /* rgb */ color: rgb(91, 181, 229); /* oklch */ color: oklch(73.7% 0.111 234.3);
Tailwind
colors: {
custom: {
50: '#95cbed',
500: '#5bb5e5',
950: '#000000',
},
}SCSS
$custom: #5bb5e5; $custom-light: #95cbed; $custom-dark: #000000;
JSON
{
"hex": "#5bb5e5",
"rgb": {
"r": 91,
"g": 181,
"b": 229
},
"hsl": {
"h": 200.87,
"s": 72.632,
"l": 62.745
},
"oklch": {
"l": 0.73685,
"c": 0.11056,
"h": 234.3
},
"luminance": 0.40929
}Semantic roles & 50–950 ramp
primary
#5BB5E5
secondary
#E7C6B5
accent
#5511D5
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284