#3F58CF#3F58CF
#3F58CF is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.2% C 0.185 H 269.6°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3F58CF |
|---|---|
| RGB | rgb(63, 88, 207) |
| HSL | hsl(230, 60%, 53%) |
| HSV | hsv(230, 70%, 81%) |
| CMYK | cmyk(69.6%, 57.5%, 0%, 18.8%) |
| CIE-LAB | lab(42.06, 30.33, -64.37) |
| CIE-LCH | lch(42.06, 71.16, 295.23°) |
| OKLab | oklab(51.22% -0.0011 -0.1855) |
| OKLCH | oklch(51.22% 0.186 269.6) |
| XYZ | xyz(16.7983, 12.5395, 60.5545) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.58
Azul
#1D5DEC
ΔE00 4.17
Electric Blue
#0652FF
ΔE00 5.59
Iris
#6258C4
ΔE00 5.59
Sapphire
#0F52BA
ΔE00 5.64
Dark Periwinkle
#665FD1
ΔE00 6.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F58CF #CFB63F
analogous
#3FA0CF #3F58CF #6E3FCF
triadic
#3F58CF #CF3F58 #58CF3F
tetradic
#3F58CF #CF3FA0 #CFB63F #3FCF6E
square
#3F58CF #CF3FA0 #CFB63F #3FCF6E
split-complementary
#3F58CF #CF6E3F #A0CF3F
monochromatic
#1E2D76 #2A40A7 #3F58CF #7083DB #A1ADE7
Accessibility & contrast
On white
5.99
#3F58CF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#3F58CF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3F58CF
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F58CF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F58CF | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006AD3
Deuteranopia (green-blind)
#005DCD
Tritanopia (blue-blind)
#00758B
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #3f58cf; /* rgb */ color: rgb(63, 88, 207); /* oklch */ color: oklch(51.2% 0.185 269.6);
Tailwind
colors: {
custom: {
50: '#8686df',
500: '#3f58cf',
950: '#000000',
},
}SCSS
$custom: #3f58cf; $custom-light: #8686df; $custom-dark: #000000;
JSON
{
"hex": "#3f58cf",
"rgb": {
"r": 63,
"g": 88,
"b": 207
},
"hsl": {
"h": 229.583,
"s": 60,
"l": 52.941
},
"oklch": {
"l": 0.51215,
"c": 0.1855,
"h": 269.6
},
"luminance": 0.12541
}Semantic roles & 50–950 ramp
primary
#3F58CF
secondary
#D4C996
accent
#C845E3
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0D0B15
muted
#7D7C83