#3959D4#3959D4
#3959D4 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.193 H 267.8°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).
Color values
| HEX | #3959D4 |
|---|---|
| RGB | rgb(57, 89, 212) |
| HSL | hsl(228, 64%, 53%) |
| HSV | hsv(228, 73%, 83%) |
| CMYK | cmyk(73.1%, 58%, 0%, 16.9%) |
| CIE-LAB | lab(42.41, 30.72, -66.69) |
| CIE-LCH | lch(42.41, 73.42, 294.73°) |
| OKLab | oklab(51.52% -0.0073 -0.1924) |
| OKLCH | oklch(51.52% 0.193 267.8) |
| XYZ | xyz(17.1393, 12.7663, 63.8354) |
| Luminance | 0.1277 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.83
Azul
#1D5DEC
ΔE00 3.30
Electric Blue
#0652FF
ΔE00 5.08
Royal Blue
#4169E1
ΔE00 5.59
Sapphire
#0F52BA
ΔE00 5.61
Iris
#6258C4
ΔE00 6.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3959D4 #D4B439
analogous
#39A6D4 #3959D4 #6739D4
triadic
#3959D4 #D43959 #59D439
tetradic
#3959D4 #D439A6 #D4B439 #39D467
square
#3959D4 #D439A6 #D4B439 #39D467
split-complementary
#3959D4 #D46739 #A6D439
monochromatic
#1A2E78 #2541AB #3959D4 #6B83DF #9EADEA
Accessibility & contrast
On white
5.91
#3959D4 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.55
#3959D4 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3959D4
5.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3959D4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3959D4 | 1.00 | 5.91 | 3.55 | 5.91 |
| #FFFFFF | 5.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006CD8
Deuteranopia (green-blind)
#005DD2
Tritanopia (blue-blind)
#00788E
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #3959d4; /* rgb */ color: rgb(57, 89, 212); /* oklch */ color: oklch(51.5% 0.193 267.8);
Tailwind
colors: {
custom: {
50: '#8487e2',
500: '#3959d4',
950: '#000000',
},
}SCSS
$custom: #3959d4; $custom-light: #8487e2; $custom-dark: #000000;
JSON
{
"hex": "#3959d4",
"rgb": {
"r": 57,
"g": 89,
"b": 212
},
"hsl": {
"h": 227.613,
"s": 64.315,
"l": 52.745
},
"oklch": {
"l": 0.51516,
"c": 0.19257,
"h": 267.8
},
"luminance": 0.12768
}Semantic roles & 50–950 ramp
primary
#3959D4
secondary
#D6C893
accent
#C540E7
background
#F8F8FE
surface
#F0EFFC
border
#CBCAD5
text
#0C0B15
muted
#7D7C84