#3961CF#3961CF
#3961CF is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.7% C 0.176 H 265.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).
Color values
| HEX | #3961CF |
|---|---|
| RGB | rgb(57, 97, 207) |
| HSL | hsl(224, 61%, 52%) |
| HSV | hsv(224, 72%, 81%) |
| CMYK | cmyk(72.5%, 53.1%, 0%, 18.8%) |
| CIE-LAB | lab(44.12, 23.78, -61.04) |
| CIE-LCH | lch(44.12, 65.51, 291.29°) |
| OKLab | oklab(52.69% -0.0136 -0.1757) |
| OKLCH | oklch(52.69% 0.176 265.6) |
| XYZ | xyz(17.2206, 13.9224, 60.7991) |
| Luminance | 0.1392 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Azul
#1D5DEC
ΔE00 3.52
Royal Blue
#4169E1
ΔE00 3.69
Denim
#1560BD
ΔE00 4.79
Warm Blue
#4B57DB
ΔE00 5.11
Bright Blue
#0165FC
ΔE00 5.31
French Blue
#436BAD
ΔE00 5.38
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3961CF #CFA739
analogous
#39ACCF #3961CF #5C39CF
triadic
#3961CF #CF3961 #61CF39
tetradic
#3961CF #CF39AC #CFA739 #39CF5C
square
#3961CF #CF39AC #CFA739 #39CF5C
split-complementary
#3961CF #CF5C39 #ACCF39
monochromatic
#1C3372 #2849A3 #3961CF #6A88DB #9CB0E7
Accessibility & contrast
On white
5.55
#3961CF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.78
#3961CF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3961CF
5.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3961CF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3961CF | 1.00 | 5.55 | 3.78 | 5.55 |
| #FFFFFF | 5.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.78 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0E70D3
Deuteranopia (green-blind)
#0062CD
Tritanopia (blue-blind)
#007C8E
Achromatopsia (no color)
#686868
Design tokens & code
CSS
--color: #3961cf; /* rgb */ color: rgb(57, 97, 207); /* oklch */ color: oklch(52.7% 0.176 265.6);
Tailwind
colors: {
custom: {
50: '#838dde',
500: '#3961cf',
950: '#000000',
},
}SCSS
$custom: #3961cf; $custom-light: #838dde; $custom-dark: #000000;
JSON
{
"hex": "#3961cf",
"rgb": {
"r": 57,
"g": 97,
"b": 207
},
"hsl": {
"h": 224,
"s": 60.976,
"l": 51.765
},
"oklch": {
"l": 0.52687,
"c": 0.17622,
"h": 265.6
},
"luminance": 0.13924
}Semantic roles & 50–950 ramp
primary
#3961CF
secondary
#D3C191
accent
#B944E4
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0C15
muted
#7D7D83