#3940B0#3940B0
#3940B0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.175 H 273.9°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).
Color values
| HEX | #3940B0 |
|---|---|
| RGB | rgb(57, 64, 176) |
| HSL | hsl(236, 51%, 46%) |
| HSV | hsv(236, 68%, 69%) |
| CMYK | cmyk(67.6%, 63.6%, 0%, 31%) |
| CIE-LAB | lab(33.29, 33.81, -60.55) |
| CIE-LCH | lch(33.29, 69.35, 299.18°) |
| OKLab | oklab(43.86% 0.0118 -0.1747) |
| OKLCH | oklch(43.86% 0.175 273.9) |
| XYZ | xyz(11.3546, 7.6702, 41.9480) |
| Luminance | 0.0767 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.08
Ocean Blue
#4F42B5
ΔE00 3.30
Blue Blue
#2242C7
ΔE00 3.43
Blueberry
#464196
ΔE00 4.55
Blue With A Hint Of Purple
#533CC6
ΔE00 5.21
Cobalt
#0047AB
ΔE00 6.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3940B0 #B0A939
analogous
#397BB0 #3940B0 #6E39B0
triadic
#3940B0 #B03940 #40B039
tetradic
#3940B0 #B0397B #B0A939 #39B06E
square
#3940B0 #B0397B #B0A939 #39B06E
split-complementary
#3940B0 #B06E39 #7BB039
monochromatic
#1B1E54 #2A2F82 #3940B0 #5C62CA #8A8FD9
Accessibility & contrast
On white
8.29
#3940B0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.53
#3940B0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3940B0
8.29:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3940B0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3940B0 | 1.00 | 8.29 | 2.53 | 8.29 |
| #FFFFFF | 8.29 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.53 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.29 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0054B4
Deuteranopia (green-blind)
#0049AE
Tritanopia (blue-blind)
#005D72
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #3940b0; /* rgb */ color: rgb(57, 64, 176); /* oklch */ color: oklch(43.9% 0.175 273.9);
Tailwind
colors: {
custom: {
50: '#7e75c9',
500: '#3940b0',
950: '#000000',
},
}SCSS
$custom: #3940b0; $custom-light: #7e75c9; $custom-dark: #000000;
JSON
{
"hex": "#3940b0",
"rgb": {
"r": 57,
"g": 64,
"b": 176
},
"hsl": {
"h": 236.471,
"s": 51.073,
"l": 45.686
},
"oklch": {
"l": 0.43856,
"c": 0.17508,
"h": 273.9
},
"luminance": 0.07671
}Semantic roles & 50–950 ramp
primary
#3940B0
secondary
#C4C081
accent
#D24DDB
background
#F8F7FC
surface
#EFEDF8
border
#CAC8D1
text
#0B0813
muted
#7C7B82