#3340B8#3340B8
#3340B8 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.187 H 271.4°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).
Color values
| HEX | #3340B8 |
|---|---|
| RGB | rgb(51, 64, 184) |
| HSL | hsl(234, 57%, 46%) |
| HSV | hsv(234, 72%, 72%) |
| CMYK | cmyk(72.3%, 65.2%, 0%, 27.8%) |
| CIE-LAB | lab(33.63, 35.86, -64.75) |
| CIE-LCH | lch(33.63, 74.02, 298.98°) |
| OKLab | oklab(44.22% 0.0047 -0.1871) |
| OKLCH | oklch(44.22% 0.187 271.4) |
| XYZ | xyz(11.8474, 7.8301, 46.2251) |
| Luminance | 0.0783 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.25
Sapphire (survey)
#2138AB
ΔE00 3.18
Ocean Blue
#4F42B5
ΔE00 3.75
Blue (survey)
#0343DF
ΔE00 4.95
Blue With A Hint Of Purple
#533CC6
ΔE00 5.06
Blueberry
#464196
ΔE00 5.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3340B8 #B8AB33
analogous
#3382B8 #3340B8 #6833B8
triadic
#3340B8 #B83340 #40B833
tetradic
#3340B8 #B83382 #B8AB33 #33B868
square
#3340B8 #B83382 #B8AB33 #33B868
split-complementary
#3340B8 #B86833 #82B833
monochromatic
#181F58 #262F88 #3340B8 #5863D1 #8890DE
Accessibility & contrast
On white
8.18
#3340B8 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.57
#3340B8 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3340B8
8.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3340B8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3340B8 | 1.00 | 8.18 | 2.57 | 8.18 |
| #FFFFFF | 8.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0055BC
Deuteranopia (green-blind)
#0049B6
Tritanopia (blue-blind)
#006076
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #3340b8; /* rgb */ color: rgb(51, 64, 184); /* oklch */ color: oklch(44.2% 0.187 271.4);
Tailwind
colors: {
custom: {
50: '#7e75ce',
500: '#3340b8',
950: '#000000',
},
}SCSS
$custom: #3340b8; $custom-light: #7e75ce; $custom-dark: #000000;
JSON
{
"hex": "#3340b8",
"rgb": {
"r": 51,
"g": 64,
"b": 184
},
"hsl": {
"h": 234.135,
"s": 56.596,
"l": 46.078
},
"oklch": {
"l": 0.44225,
"c": 0.1872,
"h": 271.4
},
"luminance": 0.07831
}Semantic roles & 50–950 ramp
primary
#3340B8
secondary
#C8C17F
accent
#D148E0
background
#F8F7FC
surface
#EFEDF9
border
#CAC8D2
text
#0B0814
muted
#7C7B82