#5BB3ED#5BB3ED
#5BB3ED is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.6% C 0.119 H 240.0°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB3ED |
|---|---|
| RGB | rgb(91, 179, 237) |
| HSL | hsl(204, 80%, 64%) |
| HSV | hsv(204, 62%, 93%) |
| CMYK | cmyk(61.6%, 24.5%, 0%, 7.1%) |
| CIE-LAB | lab(69.88, -9.36, -36.85) |
| CIE-LCH | lch(69.88, 38.02, 255.75°) |
| OKLab | oklab(73.6% -0.0597 -0.1035) |
| OKLCH | oklch(73.6% 0.119 240) |
| XYZ | xyz(35.7148, 40.5753, 86.0540) |
| Luminance | 0.4058 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue (survey)
#75BBFD
ΔE00 4.50
Deepskyblue
#00BFFF
ΔE00 5.53
Lightblue (survey)
#7BC8F6
ΔE00 6.13
Sky
#82CAFC
ΔE00 6.57
Lightskyblue
#87CEFA
ΔE00 7.78
Azure (survey)
#069AF3
ΔE00 8.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB3ED #ED955B
analogous
#5BEDDE #5BB3ED #5B6AED
triadic
#5BB3ED #ED5BB3 #B3ED5B
tetradic
#5BB3ED #DE5BED #ED955B #6AED5B
square
#5BB3ED #DE5BED #ED955B #6AED5B
split-complementary
#5BB3ED #ED5B6A #EDDE5B
monochromatic
#1478B9 #2499E7 #5BB3ED #92CDF3 #C9E6F9
Accessibility & contrast
On white
2.30
#5BB3ED on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
9.12
#5BB3ED on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB3ED
9.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB3ED | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB3ED | 1.00 | 2.30 | 9.12 | 9.12 |
| #FFFFFF | 2.30 | 1.00 | 21.00 | 21.00 |
| #000000 | 9.12 | 21.00 | 1.00 | 1.00 |
| ##000000 | 9.12 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#99B3F0
Deuteranopia (green-blind)
#85A4EC
Tritanopia (blue-blind)
#00C2C7
Achromatopsia (no color)
#ABABAB
Design tokens & code
CSS
--color: #5bb3ed; /* rgb */ color: rgb(91, 179, 237); /* oklch */ color: oklch(73.6% 0.119 240.0);
Tailwind
colors: {
custom: {
50: '#96c9f3',
500: '#5bb3ed',
950: '#000000',
},
}SCSS
$custom: #5bb3ed; $custom-light: #96c9f3; $custom-dark: #000000;
JSON
{
"hex": "#5bb3ed",
"rgb": {
"r": 91,
"g": 179,
"b": 237
},
"hsl": {
"h": 203.836,
"s": 80.22,
"l": 64.314
},
"oklch": {
"l": 0.73596,
"c": 0.11945,
"h": 240
},
"luminance": 0.40579
}Semantic roles & 50–950 ramp
primary
#5BB3ED
secondary
#EBCDB9
accent
#5D09DD
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1317
muted
#7E8285