#5B99E9#5B99E9
#5B99E9 is a light, vivid cyan. Relative luminance 0.309; OKLCH L 67.7% C 0.136 H 255.5°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).
Color values
| HEX | #5B99E9 |
|---|---|
| RGB | rgb(91, 153, 233) |
| HSL | hsl(214, 76%, 64%) |
| HSV | hsv(214, 61%, 91%) |
| CMYK | cmyk(60.9%, 34.3%, 0%, 8.6%) |
| CIE-LAB | lab(62.41, 3.99, -46.35) |
| CIE-LCH | lch(62.41, 46.52, 274.92°) |
| OKLab | oklab(67.66% -0.0339 -0.1312) |
| OKLCH | oklch(67.66% 0.136 255.5) |
| XYZ | xyz(30.4083, 30.8870, 81.4343) |
| Luminance | 0.3089 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cornflowerblue
#6495ED
ΔE00 2.70
Dark Sky Blue
#448EE4
ΔE00 3.80
Dodgerblue
#1E90FF
ΔE00 4.05
Azure (survey)
#069AF3
ΔE00 5.80
Faded Blue
#658CBB
ΔE00 6.41
Soft Blue
#6488EA
ΔE00 6.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5B99E9 #E9AB5B
analogous
#5BE0E9 #5B99E9 #645BE9
triadic
#5B99E9 #E95B99 #99E95B
tetradic
#5B99E9 #E95BE0 #E9AB5B #5BE964
square
#5B99E9 #E95BE0 #E9AB5B #5BE964
split-complementary
#5B99E9 #E9645B #E0E95B
monochromatic
#185BB2 #2577E2 #5B99E9 #91BBF0 #C7DCF7
Accessibility & contrast
On white
2.93
#5B99E9 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.18
#5B99E9 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5B99E9
7.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5B99E9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5B99E9 | 1.00 | 2.93 | 7.18 | 7.18 |
| #FFFFFF | 2.93 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.18 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.18 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#779EEC
Deuteranopia (green-blind)
#6491E7
Tritanopia (blue-blind)
#00ABB6
Achromatopsia (no color)
#979797
Design tokens & code
CSS
--color: #5b99e9; /* rgb */ color: rgb(91, 153, 233); /* oklch */ color: oklch(67.7% 0.136 255.5);
Tailwind
colors: {
custom: {
50: '#95b6f0',
500: '#5b99e9',
950: '#000000',
},
}SCSS
$custom: #5b99e9; $custom-light: #95b6f0; $custom-dark: #000000;
JSON
{
"hex": "#5b99e9",
"rgb": {
"r": 91,
"g": 153,
"b": 233
},
"hsl": {
"h": 213.803,
"s": 76.344,
"l": 63.529
},
"oklch": {
"l": 0.67664,
"c": 0.13555,
"h": 255.5
},
"luminance": 0.3089
}Semantic roles & 50–950 ramp
primary
#5B99E9
secondary
#E9D3B7
accent
#800DD9
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1116
muted
#7E8084