#3939B6#3939B6
#3939B6 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.191 H 274.9°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).
Color values
| HEX | #3939B6 |
|---|---|
| RGB | rgb(57, 57, 182) |
| HSL | hsl(240, 52%, 47%) |
| HSV | hsv(240, 69%, 71%) |
| CMYK | cmyk(68.7%, 68.7%, 0%, 28.6%) |
| CIE-LAB | lab(32.20, 40.21, -65.90) |
| CIE-LCH | lch(32.20, 77.20, 301.39°) |
| OKLab | oklab(43.23% 0.0163 -0.1904) |
| OKLCH | oklch(43.23% 0.191 274.9) |
| XYZ | xyz(11.5912, 7.1724, 45.0205) |
| Luminance | 0.0717 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.11
Ocean Blue
#4F42B5
ΔE00 3.56
Blue Blue
#2242C7
ΔE00 3.94
Blue With A Hint Of Purple
#533CC6
ΔE00 4.23
Blurple
#5539CC
ΔE00 4.91
Blueberry
#464196
ΔE00 5.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3939B6 #B6B639
analogous
#3978B6 #3939B6 #7839B6
triadic
#3939B6 #B63939 #39B639
tetradic
#3939B6 #B63978 #B6B639 #39B678
square
#3939B6 #B63978 #B6B639 #39B678
split-complementary
#3939B6 #B67839 #78B639
monochromatic
#1C1C59 #2A2A87 #3939B6 #5F5FCD #8E8EDC
Accessibility & contrast
On white
8.62
#3939B6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.43
#3939B6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3939B6
8.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3939B6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3939B6 | 1.00 | 8.62 | 2.43 | 8.62 |
| #FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051BA
Deuteranopia (green-blind)
#0046B4
Tritanopia (blue-blind)
#005B73
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #3939b6; /* rgb */ color: rgb(57, 57, 182); /* oklch */ color: oklch(43.2% 0.191 274.9);
Tailwind
colors: {
custom: {
50: '#8070cd',
500: '#3939b6',
950: '#000000',
},
}SCSS
$custom: #3939b6; $custom-light: #8070cd; $custom-dark: #000000;
JSON
{
"hex": "#3939b6",
"rgb": {
"r": 57,
"g": 57,
"b": 182
},
"hsl": {
"h": 240,
"s": 52.301,
"l": 46.863
},
"oklch": {
"l": 0.43226,
"c": 0.19107,
"h": 274.9
},
"luminance": 0.07174
}Semantic roles & 50–950 ramp
primary
#3939B6
secondary
#C6C685
accent
#DC4CDC
background
#F8F6FC
surface
#F0ECF9
border
#CBC7D2
text
#0C0714
muted
#7D7A82