#337BDE#337BDE
#337BDE is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 59.0% C 0.167 H 257.4°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).
Color values
| HEX | #337BDE |
|---|---|
| RGB | rgb(51, 123, 222) |
| HSL | hsl(215, 72%, 54%) |
| HSV | hsv(215, 77%, 87%) |
| CMYK | cmyk(77%, 44.6%, 0%, 12.9%) |
| CIE-LAB | lab(52.00, 12.17, -56.88) |
| CIE-LCH | lch(52.00, 58.17, 282.08°) |
| OKLab | oklab(58.97% -0.0365 -0.1631) |
| OKLCH | oklch(58.97% 0.167 257.4) |
| XYZ | xyz(21.6282, 20.1411, 71.8408) |
| Luminance | 0.2014 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 3.16
Clear Blue
#247AFD
ΔE00 3.34
Azure
#007FFF
ΔE00 3.42
Windows Blue
#3778BF
ΔE00 3.61
Dodger Blue
#3E82FC
ΔE00 4.56
Lightish Blue
#3D7AFD
ΔE00 4.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#337BDE #DE9633
analogous
#33D0DE #337BDE #4033DE
triadic
#337BDE #DE337B #7BDE33
tetradic
#337BDE #DE33D0 #DE9633 #33DE40
square
#337BDE #DE33D0 #DE9633 #33DE40
split-complementary
#337BDE #DE4033 #D0DE33
monochromatic
#154382 #1D5EB6 #337BDE #689DE7 #9CBFEF
Accessibility & contrast
On white
4.18
#337BDE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.03
#337BDE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #337BDE
5.03:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##337BDE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##337BDE | 1.00 | 4.18 | 5.03 | 5.03 |
| #FFFFFF | 4.18 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.03 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.03 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4784E2
Deuteranopia (green-blind)
#2275DC
Tritanopia (blue-blind)
#0092A2
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #337bde; /* rgb */ color: rgb(51, 123, 222); /* oklch */ color: oklch(59.0% 0.167 257.4);
Tailwind
colors: {
custom: {
50: '#83a0e9',
500: '#337bde',
950: '#000000',
},
}SCSS
$custom: #337bde; $custom-light: #83a0e9; $custom-dark: #000000;
JSON
{
"hex": "#337bde",
"rgb": {
"r": 51,
"g": 123,
"b": 222
},
"hsl": {
"h": 214.737,
"s": 72.152,
"l": 53.529
},
"oklch": {
"l": 0.58967,
"c": 0.16714,
"h": 257.4
},
"luminance": 0.20144
}Semantic roles & 50–950 ramp
primary
#337BDE
secondary
#DBBC92
accent
#A239EF
background
#F8F9FE
surface
#F0F2FD
border
#CBCCD5
text
#0C0E16
muted
#7D7E84