#5BB2E9#5BB2E9
#5BB2E9 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.2% C 0.116 H 238.8°. Best body text is #000000 at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB2E9 |
|---|---|
| RGB | rgb(91, 178, 233) |
| HSL | hsl(203, 76%, 64%) |
| HSV | hsv(203, 61%, 91%) |
| CMYK | cmyk(60.9%, 23.6%, 0%, 8.6%) |
| CIE-LAB | lab(69.43, -10.07, -35.36) |
| CIE-LCH | lch(69.43, 36.77, 254.11°) |
| OKLab | oklab(73.19% -0.06 -0.0992) |
| OKLCH | oklch(73.19% 0.116 238.8) |
| XYZ | xyz(34.9372, 39.9447, 82.9439) |
| Luminance | 0.3995 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue (survey)
#75BBFD
ΔE00 5.02
Deepskyblue
#00BFFF
ΔE00 5.45
Lightblue (survey)
#7BC8F6
ΔE00 6.25
Sky
#82CAFC
ΔE00 6.83
Lightskyblue
#87CEFA
ΔE00 7.93
Azure (survey)
#069AF3
ΔE00 8.23
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB2E9 #E9925B
analogous
#5BE9D9 #5BB2E9 #5B6BE9
triadic
#5BB2E9 #E95BB2 #B2E95B
tetradic
#5BB2E9 #D95BE9 #E9925B #6BE95B
square
#5BB2E9 #D95BE9 #E9925B #6BE95B
split-complementary
#5BB2E9 #E95B6B #E9D95B
monochromatic
#1876B2 #2599E2 #5BB2E9 #91CBF0 #C7E5F7
Accessibility & contrast
On white
2.34
#5BB2E9 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.99
#5BB2E9 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB2E9
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB2E9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB2E9 | 1.00 | 2.34 | 8.99 | 8.99 |
| #FFFFFF | 2.34 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#99B2EC
Deuteranopia (green-blind)
#85A3E8
Tritanopia (blue-blind)
#00C0C5
Achromatopsia (no color)
#AAAAAA
Design tokens & code
CSS
--color: #5bb2e9; /* rgb */ color: rgb(91, 178, 233); /* oklch */ color: oklch(73.2% 0.116 238.8);
Tailwind
colors: {
custom: {
50: '#95c8f0',
500: '#5bb2e9',
950: '#000000',
},
}SCSS
$custom: #5bb2e9; $custom-light: #95c8f0; $custom-dark: #000000;
JSON
{
"hex": "#5bb2e9",
"rgb": {
"r": 91,
"g": 178,
"b": 233
},
"hsl": {
"h": 203.239,
"s": 76.344,
"l": 63.529
},
"oklch": {
"l": 0.73188,
"c": 0.11591,
"h": 238.8
},
"luminance": 0.39948
}Semantic roles & 50–950 ramp
primary
#5BB2E9
secondary
#E9CAB7
accent
#5C0DD9
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284