#3437B2#3437B2
#3437B2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.189 H 273.7°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3437B2 |
|---|---|
| RGB | rgb(52, 55, 178) |
| HSL | hsl(239, 55%, 45%) |
| HSV | hsv(239, 71%, 70%) |
| CMYK | cmyk(70.8%, 69.1%, 0%, 30.2%) |
| CIE-LAB | lab(31.06, 39.46, -65.41) |
| CIE-LCH | lch(31.06, 76.39, 301.10°) |
| OKLab | oklab(42.21% 0.0122 -0.1891) |
| OKLCH | oklch(42.21% 0.189 273.7) |
| XYZ | xyz(10.8156, 6.6757, 42.8294) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.41
Ocean Blue
#4F42B5
ΔE00 4.33
Blue Blue
#2242C7
ΔE00 4.37
Blue With A Hint Of Purple
#533CC6
ΔE00 5.10
Blueberry
#464196
ΔE00 5.73
Blurple
#5539CC
ΔE00 5.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3437B2 #B2AF34
analogous
#3476B2 #3437B2 #7034B2
triadic
#3437B2 #B23437 #37B234
tetradic
#3437B2 #B23476 #B2AF34 #34B270
square
#3437B2 #B23476 #B2AF34 #34B270
split-complementary
#3437B2 #B27034 #76B234
monochromatic
#181A53 #262883 #3437B2 #5659CE #8587DB
Accessibility & contrast
On white
8.99
#3437B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#3437B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3437B2
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3437B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3437B2 | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FB6
Deuteranopia (green-blind)
#0043B0
Tritanopia (blue-blind)
#005870
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #3437b2; /* rgb */ color: rgb(52, 55, 178); /* oklch */ color: oklch(42.2% 0.189 273.7);
Tailwind
colors: {
custom: {
50: '#7d6eca',
500: '#3437b2',
950: '#000000',
},
}SCSS
$custom: #3437b2; $custom-light: #7d6eca; $custom-dark: #000000;
JSON
{
"hex": "#3437b2",
"rgb": {
"r": 52,
"g": 55,
"b": 178
},
"hsl": {
"h": 238.571,
"s": 54.783,
"l": 45.098
},
"oklch": {
"l": 0.42206,
"c": 0.18945,
"h": 273.7
},
"luminance": 0.06677
}Semantic roles & 50–950 ramp
primary
#3437B2
secondary
#C5C37D
accent
#DB4ADE
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0713
muted
#7C7A82