#437DDC#437DDC
#437DDC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.8% C 0.157 H 259.8°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).
Color values
| HEX | #437DDC |
|---|---|
| RGB | rgb(67, 125, 220) |
| HSL | hsl(217, 69%, 56%) |
| HSV | hsv(217, 70%, 86%) |
| CMYK | cmyk(69.5%, 43.2%, 0%, 13.7%) |
| CIE-LAB | lab(52.98, 12.27, -54.15) |
| CIE-LCH | lch(52.98, 55.52, 282.77°) |
| OKLab | oklab(59.84% -0.0279 -0.1548) |
| OKLCH | oklch(59.84% 0.157 259.8) |
| XYZ | xyz(22.5620, 21.0255, 70.5655) |
| Luminance | 0.2103 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Clear Blue
#247AFD
ΔE00 3.25
Azure
#007FFF
ΔE00 3.65
Deep Sky Blue
#0D75F8
ΔE00 3.67
Dodger Blue
#3E82FC
ΔE00 3.79
Lightish Blue
#3D7AFD
ΔE00 3.90
Windows Blue
#3778BF
ΔE00 4.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#437DDC #DCA243
analogous
#43CADC #437DDC #5643DC
triadic
#437DDC #DC437D #7DDC43
tetradic
#437DDC #DC43CA #DCA243 #43DC56
square
#437DDC #DC43CA #DCA243 #43DC56
split-complementary
#437DDC #DC5643 #CADC43
monochromatic
#1A458B #235EBE #437DDC #77A1E6 #AAC4EF
Accessibility & contrast
On white
4.03
#437DDC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.21
#437DDC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #437DDC
5.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##437DDC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##437DDC | 1.00 | 4.03 | 5.21 | 5.21 |
| #FFFFFF | 4.03 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.21 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.21 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4F86E0
Deuteranopia (green-blind)
#3478DA
Tritanopia (blue-blind)
#0093A2
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #437ddc; /* rgb */ color: rgb(67, 125, 220); /* oklch */ color: oklch(59.8% 0.157 259.8);
Tailwind
colors: {
custom: {
50: '#88a2e7',
500: '#437ddc',
950: '#000000',
},
}SCSS
$custom: #437ddc; $custom-light: #88a2e7; $custom-dark: #000000;
JSON
{
"hex": "#437ddc",
"rgb": {
"r": 67,
"g": 125,
"b": 220
},
"hsl": {
"h": 217.255,
"s": 68.61,
"l": 56.275
},
"oklch": {
"l": 0.59839,
"c": 0.15731,
"h": 259.8
},
"luminance": 0.21028
}Semantic roles & 50–950 ramp
primary
#437DDC
secondary
#DDC59E
accent
#A93CEB
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0F16
muted
#7E7E84