#3F43BD#3F43BD
#3F43BD is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.9% C 0.187 H 274.8°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).
Color values
| HEX | #3F43BD |
|---|---|
| RGB | rgb(63, 67, 189) |
| HSL | hsl(238, 50%, 49%) |
| HSV | hsv(238, 67%, 74%) |
| CMYK | cmyk(66.7%, 64.6%, 0%, 25.9%) |
| CIE-LAB | lab(35.49, 37.26, -64.62) |
| CIE-LCH | lch(35.49, 74.60, 299.97°) |
| OKLab | oklab(45.91% 0.0156 -0.1864) |
| OKLCH | oklch(45.91% 0.187 274.8) |
| XYZ | xyz(13.2393, 8.7440, 49.1243) |
| Luminance | 0.0874 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 2.59
Blue Blue
#2242C7
ΔE00 2.71
Blue With A Hint Of Purple
#533CC6
ΔE00 3.85
Blue (survey)
#0343DF
ΔE00 4.71
Blurple
#5539CC
ΔE00 4.73
Sapphire (survey)
#2138AB
ΔE00 4.82
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F43BD #BDB93F
analogous
#3F82BD #3F43BD #7A3FBD
triadic
#3F43BD #BD3F43 #43BD3F
tetradic
#3F43BD #BD3F82 #BDB93F #3FBD7A
square
#3F43BD #BD3F82 #BDB93F #3FBD7A
split-complementary
#3F43BD #BD7A3F #82BD3F
monochromatic
#202261 #30338F #3F43BD #6B6FCE #999BDD
Accessibility & contrast
On white
7.64
#3F43BD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.75
#3F43BD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F43BD
7.64:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F43BD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F43BD | 1.00 | 7.64 | 2.75 | 7.64 |
| #FFFFFF | 7.64 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.75 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.64 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0059C1
Deuteranopia (green-blind)
#004EBB
Tritanopia (blue-blind)
#00637A
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #3f43bd; /* rgb */ color: rgb(63, 67, 189); /* oklch */ color: oklch(45.9% 0.187 274.8);
Tailwind
colors: {
custom: {
50: '#8377d2',
500: '#3f43bd',
950: '#000000',
},
}SCSS
$custom: #3f43bd; $custom-light: #8377d2; $custom-dark: #000000;
JSON
{
"hex": "#3f43bd",
"rgb": {
"r": 63,
"g": 67,
"b": 189
},
"hsl": {
"h": 238.095,
"s": 50,
"l": 49.412
},
"oklch": {
"l": 0.45909,
"c": 0.1871,
"h": 274.8
},
"luminance": 0.08745
}Semantic roles & 50–950 ramp
primary
#3F43BD
secondary
#C9C78F
accent
#D54EDA
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0914
muted
#7D7B83