#3840BC#3840BC
#3840BC is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.191 H 272.9°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3840BC |
|---|---|
| RGB | rgb(56, 64, 188) |
| HSL | hsl(236, 54%, 48%) |
| HSV | hsv(236, 70%, 74%) |
| CMYK | cmyk(70.2%, 66%, 0%, 26.3%) |
| CIE-LAB | lab(34.27, 37.86, -66.05) |
| CIE-LCH | lch(34.27, 76.13, 299.82°) |
| OKLab | oklab(44.88% 0.0098 -0.1908) |
| OKLCH | oklch(44.88% 0.191 272.9) |
| XYZ | xyz(12.5383, 8.1372, 48.4771) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.28
Ocean Blue
#4F42B5
ΔE00 3.20
Sapphire (survey)
#2138AB
ΔE00 3.85
Blue With A Hint Of Purple
#533CC6
ΔE00 4.23
Blue (survey)
#0343DF
ΔE00 4.64
Blurple
#5539CC
ΔE00 5.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3840BC #BCB438
analogous
#3882BC #3840BC #7238BC
triadic
#3840BC #BC3840 #40BC38
tetradic
#3840BC #BC3882 #BCB438 #38BC72
square
#3840BC #BC3882 #BCB438 #38BC72
split-complementary
#3840BC #BC7238 #82BC38
monochromatic
#1C205E #2A308D #3840BC #6168D0 #9095DE
Accessibility & contrast
On white
7.99
#3840BC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#3840BC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3840BC
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3840BC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3840BC | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057C0
Deuteranopia (green-blind)
#004ABA
Tritanopia (blue-blind)
#006178
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #3840bc; /* rgb */ color: rgb(56, 64, 188); /* oklch */ color: oklch(44.9% 0.191 272.9);
Tailwind
colors: {
custom: {
50: '#8175d1',
500: '#3840bc',
950: '#000000',
},
}SCSS
$custom: #3840bc; $custom-light: #8175d1; $custom-dark: #000000;
JSON
{
"hex": "#3840bc",
"rgb": {
"r": 56,
"g": 64,
"b": 188
},
"hsl": {
"h": 236.364,
"s": 54.098,
"l": 47.843
},
"oklch": {
"l": 0.44877,
"c": 0.19107,
"h": 272.9
},
"luminance": 0.08138
}Semantic roles & 50–950 ramp
primary
#3840BC
secondary
#C9C587
accent
#D54ADD
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0814
muted
#7D7B83