#3973F2#3973F2
#3973F2 is a mid, highly saturated blue. Relative luminance 0.195; OKLCH L 58.9% C 0.201 H 263.2°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #3973F2 |
|---|---|
| RGB | rgb(57, 115, 242) |
| HSL | hsl(221, 88%, 59%) |
| HSV | hsv(221, 76%, 95%) |
| CMYK | cmyk(76.4%, 52.5%, 0%, 5.1%) |
| CIE-LAB | lab(51.31, 25.18, -69.18) |
| CIE-LCH | lch(51.31, 73.62, 290.00°) |
| OKLab | oklab(58.91% -0.0239 -0.1993) |
| OKLCH | oklch(58.91% 0.201 263.2) |
| XYZ | xyz(23.8394, 19.5394, 86.5022) |
| Luminance | 0.1954 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 2.45
Lightish Blue
#3D7AFD
ΔE00 2.75
Clear Blue
#247AFD
ΔE00 3.12
Cerulean Blue
#056EEE
ΔE00 3.13
Cornflower Blue
#5170D7
ΔE00 3.84
Royal Blue
#4169E1
ΔE00 4.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3973F2 #F2B839
analogous
#39D0F2 #3973F2 #5B39F2
triadic
#3973F2 #F23973 #73F239
tetradic
#3973F2 #F239D0 #F2B839 #39F25B
square
#3973F2 #F239D0 #F2B839 #39F25B
split-complementary
#3973F2 #F25B39 #D0F239
monochromatic
#0B3BA6 #0F50DF #3973F2 #729CF6 #ACC4FA
Accessibility & contrast
On white
4.28
#3973F2 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.91
#3973F2 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3973F2
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3973F2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3973F2 | 1.00 | 4.28 | 4.91 | 4.91 |
| #FFFFFF | 4.28 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.91 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.91 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0F83F6
Deuteranopia (green-blind)
#0072EF
Tritanopia (blue-blind)
#0092A7
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #3973f2; /* rgb */ color: rgb(57, 115, 242); /* oklch */ color: oklch(58.9% 0.201 263.2);
Tailwind
colors: {
custom: {
50: '#899af7',
500: '#3973f2',
950: '#000000',
},
}SCSS
$custom: #3973f2; $custom-light: #899af7; $custom-dark: #000000;
JSON
{
"hex": "#3973f2",
"rgb": {
"r": 57,
"g": 115,
"b": 242
},
"hsl": {
"h": 221.189,
"s": 87.678,
"l": 58.627
},
"oklch": {
"l": 0.58909,
"c": 0.20078,
"h": 263.2
},
"luminance": 0.19542
}Semantic roles & 50–950 ramp
primary
#3973F2
secondary
#E8D19F
accent
#BB2AFE
background
#F9F9FF
surface
#F2F2FF
border
#CCCCD7
text
#0E0E17
muted
#7E7E85