#343DB0#343DB0
#343DB0 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.180 H 272.7°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).
Color values
| HEX | #343DB0 |
|---|---|
| RGB | rgb(52, 61, 176) |
| HSL | hsl(236, 54%, 45%) |
| HSV | hsv(236, 70%, 69%) |
| CMYK | cmyk(70.5%, 65.3%, 0%, 31%) |
| CIE-LAB | lab(32.26, 35.04, -62.24) |
| CIE-LCH | lch(32.26, 71.43, 299.38°) |
| OKLab | oklab(43.02% 0.0084 -0.1798) |
| OKLCH | oklch(43.02% 0.18 272.7) |
| XYZ | xyz(10.9188, 7.2011, 41.8804) |
| Luminance | 0.0720 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.25
Blue Blue
#2242C7
ΔE00 3.49
Ocean Blue
#4F42B5
ΔE00 3.89
Blueberry
#464196
ΔE00 4.93
Blue With A Hint Of Purple
#533CC6
ΔE00 5.43
Cobalt
#0047AB
ΔE00 6.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#343DB0 #B0A734
analogous
#347BB0 #343DB0 #6934B0
triadic
#343DB0 #B0343D #3DB034
tetradic
#343DB0 #B0347B #B0A734 #34B069
square
#343DB0 #B0347B #B0A734 #34B069
split-complementary
#343DB0 #B06934 #7BB034
monochromatic
#181C52 #262D81 #343DB0 #555DCD #848ADB
Accessibility & contrast
On white
8.61
#343DB0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#343DB0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #343DB0
8.61:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##343DB0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##343DB0 | 1.00 | 8.61 | 2.44 | 8.61 |
| #FFFFFF | 8.61 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.61 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052B4
Deuteranopia (green-blind)
#0046AE
Tritanopia (blue-blind)
#005B71
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #343db0; /* rgb */ color: rgb(52, 61, 176); /* oklch */ color: oklch(43.0% 0.180 272.7);
Tailwind
colors: {
custom: {
50: '#7d72c9',
500: '#343db0',
950: '#000000',
},
}SCSS
$custom: #343db0; $custom-light: #7d72c9; $custom-dark: #000000;
JSON
{
"hex": "#343db0",
"rgb": {
"r": 52,
"g": 61,
"b": 176
},
"hsl": {
"h": 235.645,
"s": 54.386,
"l": 44.706
},
"oklch": {
"l": 0.43024,
"c": 0.17998,
"h": 272.7
},
"luminance": 0.07202
}Semantic roles & 50–950 ramp
primary
#343DB0
secondary
#C4BF7C
accent
#D34ADE
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82