#637DED#637DED
#637DED is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.5% C 0.170 H 270.9°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).
Color values
| HEX | #637DED |
|---|---|
| RGB | rgb(99, 125, 237) |
| HSL | hsl(229, 79%, 66%) |
| HSV | hsv(229, 58%, 93%) |
| CMYK | cmyk(58.2%, 47.3%, 0%, 7.1%) |
| CIE-LAB | lab(55.51, 23.49, -59.52) |
| CIE-LCH | lch(55.51, 63.98, 291.54°) |
| OKLab | oklab(62.52% 0.0028 -0.17) |
| OKLCH | oklch(62.52% 0.17 270.9) |
| XYZ | xyz(27.7602, 23.4321, 83.1643) |
| Luminance | 0.2343 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 2.50
Soft Blue
#6488EA
ΔE00 3.75
Lightish Blue
#3D7AFD
ΔE00 4.28
Dodger Blue
#3E82FC
ΔE00 5.32
Cornflower Blue
#5170D7
ΔE00 5.68
Clear Blue
#247AFD
ΔE00 5.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#637DED #EDD363
analogous
#63C2ED #637DED #8E63ED
triadic
#637DED #ED637D #7DED63
tetradic
#637DED #ED63C2 #EDD363 #63ED8E
square
#637DED #ED63C2 #EDD363 #63ED8E
split-complementary
#637DED #ED8E63 #C2ED63
monochromatic
#1636C0 #2C4FE7 #637DED #9AABF3 #D1D8FA
Accessibility & contrast
On white
3.69
#637DED on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.69
#637DED on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #637DED
5.69:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##637DED | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##637DED | 1.00 | 3.69 | 5.69 | 5.69 |
| #FFFFFF | 3.69 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.69 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.69 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#468BF1
Deuteranopia (green-blind)
#307FEB
Tritanopia (blue-blind)
#0096AA
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #637ded; /* rgb */ color: rgb(99, 125, 237); /* oklch */ color: oklch(62.5% 0.170 270.9);
Tailwind
colors: {
custom: {
50: '#9aa2f3',
500: '#637ded',
950: '#000000',
},
}SCSS
$custom: #637ded; $custom-light: #9aa2f3; $custom-dark: #000000;
JSON
{
"hex": "#637ded",
"rgb": {
"r": 99,
"g": 125,
"b": 237
},
"hsl": {
"h": 228.696,
"s": 79.31,
"l": 65.882
},
"oklch": {
"l": 0.62521,
"c": 0.17001,
"h": 270.9
},
"luminance": 0.23434
}Semantic roles & 50–950 ramp
primary
#637DED
secondary
#EDE4BF
accent
#B40ADC
background
#FAF9FE
surface
#F3F2FD
border
#CDCCD5
text
#0F0F17
muted
#7F7E85