#3366D6#3366D6
#3366D6 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.181 H 263.2°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).
Color values
| HEX | #3366D6 |
|---|---|
| RGB | rgb(51, 102, 214) |
| HSL | hsl(221, 67%, 52%) |
| HSV | hsv(221, 76%, 84%) |
| CMYK | cmyk(76.2%, 52.3%, 0%, 16.1%) |
| CIE-LAB | lab(45.72, 22.44, -62.47) |
| CIE-LCH | lch(45.72, 66.38, 289.76°) |
| OKLab | oklab(53.99% -0.0214 -0.1799) |
| OKLCH | oklch(53.99% 0.181 263.2) |
| XYZ | xyz(18.2499, 15.0595, 65.5502) |
| Luminance | 0.1506 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 2.52
Azul
#1D5DEC
ΔE00 3.83
Bright Blue
#0165FC
ΔE00 4.15
Cerulean Blue
#056EEE
ΔE00 4.22
Cornflower Blue
#5170D7
ΔE00 4.45
Denim
#1560BD
ΔE00 4.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3366D6 #D6A333
analogous
#33B8D6 #3366D6 #5233D6
triadic
#3366D6 #D63366 #66D633
tetradic
#3366D6 #D633B8 #D6A333 #33D652
square
#3366D6 #D633B8 #D6A333 #33D652
split-complementary
#3366D6 #D65233 #B8D633
monochromatic
#183677 #224DAA #3366D6 #668CE0 #99B2EA
Accessibility & contrast
On white
5.23
#3366D6 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.01
#3366D6 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3366D6
5.23:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3366D6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3366D6 | 1.00 | 5.23 | 4.01 | 5.23 |
| #FFFFFF | 5.23 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.01 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.23 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1474DA
Deuteranopia (green-blind)
#0065D4
Tritanopia (blue-blind)
#008194
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #3366d6; /* rgb */ color: rgb(51, 102, 214); /* oklch */ color: oklch(54.0% 0.181 263.2);
Tailwind
colors: {
custom: {
50: '#8291e3',
500: '#3366d6',
950: '#000000',
},
}SCSS
$custom: #3366d6; $custom-light: #8291e3; $custom-dark: #000000;
JSON
{
"hex": "#3366d6",
"rgb": {
"r": 51,
"g": 102,
"b": 214
},
"hsl": {
"h": 221.227,
"s": 66.531,
"l": 51.961
},
"oklch": {
"l": 0.53987,
"c": 0.1812,
"h": 263.2
},
"luminance": 0.15062
}Semantic roles & 50–950 ramp
primary
#3366D6
secondary
#D6C08F
accent
#B43EE9
background
#F8F8FE
surface
#F0F0FC
border
#CBCBD5
text
#0C0C16
muted
#7D7D84