#5BB3E4#5BB3E4
#5BB3E4 is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.2% C 0.110 H 235.4°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).
Color values
| HEX | #5BB3E4 |
|---|---|
| RGB | rgb(91, 179, 228) |
| HSL | hsl(201, 72%, 63%) |
| HSV | hsv(201, 60%, 89%) |
| CMYK | cmyk(60.1%, 21.5%, 0%, 10.6%) |
| CIE-LAB | lab(69.51, -12.16, -32.51) |
| CIE-LCH | lch(69.51, 34.71, 249.49°) |
| OKLab | oklab(73.19% -0.0627 -0.091) |
| OKLCH | oklch(73.19% 0.11 235.4) |
| XYZ | xyz(34.4327, 40.0625, 79.3020) |
| Luminance | 0.4007 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 4.93
Lightblue (survey)
#7BC8F6
ΔE00 5.93
Sky Blue (survey)
#75BBFD
ΔE00 6.11
Sky
#82CAFC
ΔE00 6.87
Lightskyblue
#87CEFA
ΔE00 7.67
Bright Sky Blue
#02CCFE
ΔE00 8.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BB3E4 #E48C5B
analogous
#5BE4D1 #5BB3E4 #5B6EE4
triadic
#5BB3E4 #E45BB3 #B3E45B
tetradic
#5BB3E4 #D15BE4 #E48C5B #6EE45B
square
#5BB3E4 #D15BE4 #E48C5B #6EE45B
split-complementary
#5BB3E4 #E45B6E #E4D15B
monochromatic
#1C76A9 #269BDB #5BB3E4 #90CBED #C4E4F5
Accessibility & contrast
On white
2.33
#5BB3E4 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
9.01
#5BB3E4 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BB3E4
9.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BB3E4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BB3E4 | 1.00 | 2.33 | 9.01 | 9.01 |
| #FFFFFF | 2.33 | 1.00 | 21.00 | 21.00 |
| #000000 | 9.01 | 21.00 | 1.00 | 1.00 |
| ##000000 | 9.01 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#9CB2E6
Deuteranopia (green-blind)
#89A4E3
Tritanopia (blue-blind)
#00C0C3
Achromatopsia (no color)
#AAAAAA
Design tokens & code
CSS
--color: #5bb3e4; /* rgb */ color: rgb(91, 179, 228); /* oklch */ color: oklch(73.2% 0.110 235.4);
Tailwind
colors: {
custom: {
50: '#95c9ec',
500: '#5bb3e4',
950: '#000000',
},
}SCSS
$custom: #5bb3e4; $custom-light: #95c9ec; $custom-dark: #000000;
JSON
{
"hex": "#5bb3e4",
"rgb": {
"r": 91,
"g": 179,
"b": 228
},
"hsl": {
"h": 201.46,
"s": 71.728,
"l": 62.549
},
"oklch": {
"l": 0.73188,
"c": 0.11048,
"h": 235.4
},
"luminance": 0.40066
}Semantic roles & 50–950 ramp
primary
#5BB3E4
secondary
#E6C6B4
accent
#5712D4
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284