#3C99D3#3C99D3
#3C99D3 is a light, vivid cyan. Relative luminance 0.284; OKLCH L 65.3% C 0.122 H 240.0°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).
Color values
| HEX | #3C99D3 |
|---|---|
| RGB | rgb(60, 153, 211) |
| HSL | hsl(203, 63%, 53%) |
| HSV | hsv(203, 72%, 83%) |
| CMYK | cmyk(71.6%, 27.5%, 0%, 17.3%) |
| CIE-LAB | lab(60.29, -8.43, -37.55) |
| CIE-LCH | lch(60.29, 38.48, 257.34°) |
| OKLab | oklab(65.35% -0.0611 -0.106) |
| OKLCH | oklch(65.35% 0.122 240) |
| XYZ | xyz(25.0080, 28.4435, 65.7875) |
| Luminance | 0.2845 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Azure (survey)
#069AF3
ΔE00 3.89
Water Blue
#0E87CC
ΔE00 6.33
Dark Sky Blue
#448EE4
ΔE00 6.59
Dodgerblue
#1E90FF
ΔE00 6.91
Cerulean (survey)
#0485D1
ΔE00 7.16
Cool Blue
#4984B8
ΔE00 7.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3C99D3 #D3763C
analogous
#3CD3C1 #3C99D3 #3C4DD3
triadic
#3C99D3 #D33C99 #99D33C
tetradic
#3C99D3 #C13CD3 #D3763C #4DD33C
square
#3C99D3 #C13CD3 #D3763C #4DD33C
split-complementary
#3C99D3 #D33C4D #D3C13C
monochromatic
#1B5579 #2778AB #3C99D3 #6EB3DE #A0CDEA
Accessibility & contrast
On white
3.14
#3C99D3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.69
#3C99D3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3C99D3
6.69:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3C99D3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3C99D3 | 1.00 | 3.14 | 6.69 | 6.69 |
| #FFFFFF | 3.14 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.69 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.69 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7E99D6
Deuteranopia (green-blind)
#698BD2
Tritanopia (blue-blind)
#00A8AD
Achromatopsia (no color)
#919191
Design tokens & code
CSS
--color: #3c99d3; /* rgb */ color: rgb(60, 153, 211); /* oklch */ color: oklch(65.3% 0.122 240.0);
Tailwind
colors: {
custom: {
50: '#84b6e0',
500: '#3c99d3',
950: '#000000',
},
}SCSS
$custom: #3c99d3; $custom-light: #84b6e0; $custom-dark: #000000;
JSON
{
"hex": "#3c99d3",
"rgb": {
"r": 60,
"g": 153,
"b": 211
},
"hsl": {
"h": 203.046,
"s": 63.18,
"l": 53.137
},
"oklch": {
"l": 0.6535,
"c": 0.12236,
"h": 240
},
"luminance": 0.28446
}Semantic roles & 50–950 ramp
primary
#3C99D3
secondary
#D6AE95
accent
#8142E6
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0C1115
muted
#7D8083