#343BB3#343BB3
#343BB3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.186 H 272.9°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).
Color values
| HEX | #343BB3 |
|---|---|
| RGB | rgb(52, 59, 179) |
| HSL | hsl(237, 55%, 45%) |
| HSV | hsv(237, 71%, 70%) |
| CMYK | cmyk(70.9%, 67%, 0%, 29.8%) |
| CIE-LAB | lab(32.06, 37.35, -64.36) |
| CIE-LCH | lch(32.06, 74.41, 300.13°) |
| OKLab | oklab(42.96% 0.0095 -0.186) |
| OKLCH | oklch(42.96% 0.186 272.9) |
| XYZ | xyz(11.1141, 7.1116, 43.4260) |
| Luminance | 0.0711 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.33
Blue Blue
#2242C7
ΔE00 3.52
Ocean Blue
#4F42B5
ΔE00 3.87
Blue With A Hint Of Purple
#533CC6
ΔE00 5.02
Blueberry
#464196
ΔE00 5.39
Blurple
#5539CC
ΔE00 5.78
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#343BB3 #B3AC34
analogous
#347AB3 #343BB3 #6C34B3
triadic
#343BB3 #B3343B #3BB334
tetradic
#343BB3 #B3347A #B3AC34 #34B36C
square
#343BB3 #B3347A #B3AC34 #34B36C
split-complementary
#343BB3 #B36C34 #7AB334
monochromatic
#181C54 #262B84 #343BB3 #565DCE #868ADC
Accessibility & contrast
On white
8.67
#343BB3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#343BB3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #343BB3
8.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##343BB3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##343BB3 | 1.00 | 8.67 | 2.42 | 8.67 |
| #FFFFFF | 8.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B7
Deuteranopia (green-blind)
#0046B1
Tritanopia (blue-blind)
#005B72
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #343bb3; /* rgb */ color: rgb(52, 59, 179); /* oklch */ color: oklch(43.0% 0.186 272.9);
Tailwind
colors: {
custom: {
50: '#7d71cb',
500: '#343bb3',
950: '#000000',
},
}SCSS
$custom: #343bb3; $custom-light: #7d71cb; $custom-dark: #000000;
JSON
{
"hex": "#343bb3",
"rgb": {
"r": 52,
"g": 59,
"b": 179
},
"hsl": {
"h": 236.693,
"s": 54.978,
"l": 45.294
},
"oklch": {
"l": 0.4296,
"c": 0.18622,
"h": 272.9
},
"luminance": 0.07113
}Semantic roles & 50–950 ramp
primary
#343BB3
secondary
#C5C17D
accent
#D649DE
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0813
muted
#7C7B82