#3440B9#3440B9
#3440B9 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.4% C 0.188 H 271.7°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).
Color values
| HEX | #3440B9 |
|---|---|
| RGB | rgb(52, 64, 185) |
| HSL | hsl(235, 56%, 46%) |
| HSV | hsv(235, 72%, 73%) |
| CMYK | cmyk(71.9%, 65.4%, 0%, 27.5%) |
| CIE-LAB | lab(33.77, 36.33, -65.10) |
| CIE-LCH | lch(33.77, 74.56, 299.16°) |
| OKLab | oklab(44.37% 0.0057 -0.1882) |
| OKLCH | oklch(44.37% 0.188 271.7) |
| XYZ | xyz(12.0036, 7.8984, 46.7815) |
| Luminance | 0.0790 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.21
Sapphire (survey)
#2138AB
ΔE00 3.32
Ocean Blue
#4F42B5
ΔE00 3.63
Blue (survey)
#0343DF
ΔE00 4.86
Blue With A Hint Of Purple
#533CC6
ΔE00 4.88
Blurple
#5539CC
ΔE00 5.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3440B9 #B9AD34
analogous
#3483B9 #3440B9 #6A34B9
triadic
#3440B9 #B93440 #40B934
tetradic
#3440B9 #B93483 #B9AD34 #34B96A
square
#3440B9 #B93483 #B9AD34 #34B96A
split-complementary
#3440B9 #B96A34 #83B934
monochromatic
#191F59 #272F89 #3440B9 #5A64D1 #8991DE
Accessibility & contrast
On white
8.14
#3440B9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.58
#3440B9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3440B9
8.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3440B9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3440B9 | 1.00 | 8.14 | 2.58 | 8.14 |
| #FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0056BD
Deuteranopia (green-blind)
#0049B7
Tritanopia (blue-blind)
#006077
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #3440b9; /* rgb */ color: rgb(52, 64, 185); /* oklch */ color: oklch(44.4% 0.188 271.7);
Tailwind
colors: {
custom: {
50: '#7e75cf',
500: '#3440b9',
950: '#000000',
},
}SCSS
$custom: #3440b9; $custom-light: #7e75cf; $custom-dark: #000000;
JSON
{
"hex": "#3440b9",
"rgb": {
"r": 52,
"g": 64,
"b": 185
},
"hsl": {
"h": 234.586,
"s": 56.118,
"l": 46.471
},
"oklch": {
"l": 0.44372,
"c": 0.18824,
"h": 271.7
},
"luminance": 0.079
}Semantic roles & 50–950 ramp
primary
#3440B9
secondary
#C8C281
accent
#D248DF
background
#F8F7FC
surface
#F0EDF9
border
#CBC8D2
text
#0B0814
muted
#7C7B82