#5BB1EE#5BB1EE
#5BB1EE is a light, vivid cyan. Relative luminance 0.398; OKLCH L 73.2% C 0.122 H 241.9°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB1EE |
|---|---|
| RGB | rgb(91, 177, 238) |
| HSL | hsl(205, 81%, 65%) |
| HSV | hsv(205, 62%, 93%) |
| CMYK | cmyk(61.8%, 25.6%, 0%, 6.7%) |
| CIE-LAB | lab(69.35, -7.95, -38.21) |
| CIE-LCH | lch(69.35, 39.03, 258.25°) |
| OKLab | oklab(73.2% -0.0573 -0.1074) |
| OKLCH | oklch(73.2% 0.122 241.9) |
| XYZ | xyz(35.4633, 39.8380, 86.6929) |
| Luminance | 0.3984 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue (survey)
#75BBFD
ΔE00 4.26
Deepskyblue
#00BFFF
ΔE00 6.39
Lightblue (survey)
#7BC8F6
ΔE00 6.80
Sky
#82CAFC
ΔE00 7.05
Azure (survey)
#069AF3
ΔE00 7.45
Carolina Blue
#8AB8FE
ΔE00 8.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB1EE #EE985B
analogous
#5BEEE1 #5BB1EE #5B68EE
triadic
#5BB1EE #EE5BB1 #B1EE5B
tetradic
#5BB1EE #E15BEE #EE985B #68EE5B
square
#5BB1EE #E15BEE #EE985B #68EE5B
split-complementary
#5BB1EE #EE5B68 #EEE15B
monochromatic
#1376BB #2497E8 #5BB1EE #92CBF4 #CAE6F9
Accessibility & contrast
On white
2.34
#5BB1EE on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.97
#5BB1EE on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB1EE
8.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB1EE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB1EE | 1.00 | 2.34 | 8.97 | 8.97 |
| #FFFFFF | 2.34 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.97 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.97 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#96B2F1
Deuteranopia (green-blind)
#82A3ED
Tritanopia (blue-blind)
#00C0C6
Achromatopsia (no color)
#A9A9A9
Design tokens & code
CSS
--color: #5bb1ee; /* rgb */ color: rgb(91, 177, 238); /* oklch */ color: oklch(73.2% 0.122 241.9);
Tailwind
colors: {
custom: {
50: '#96c8f3',
500: '#5bb1ee',
950: '#000000',
},
}SCSS
$custom: #5bb1ee; $custom-light: #96c8f3; $custom-dark: #000000;
JSON
{
"hex": "#5bb1ee",
"rgb": {
"r": 91,
"g": 177,
"b": 238
},
"hsl": {
"h": 204.898,
"s": 81.215,
"l": 64.51
},
"oklch": {
"l": 0.73196,
"c": 0.12174,
"h": 241.9
},
"luminance": 0.39841
}Semantic roles & 50–950 ramp
primary
#5BB1EE
secondary
#ECCEB9
accent
#6108DE
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1317
muted
#7E8285