#3237B4#3237B4
#3237B4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.3% C 0.193 H 272.9°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).
Color values
| HEX | #3237B4 |
|---|---|
| RGB | rgb(50, 55, 180) |
| HSL | hsl(238, 57%, 45%) |
| HSV | hsv(238, 72%, 71%) |
| CMYK | cmyk(72.2%, 69.4%, 0%, 29.4%) |
| CIE-LAB | lab(31.13, 39.92, -66.49) |
| CIE-LCH | lch(31.13, 77.56, 300.98°) |
| OKLab | oklab(42.28% 0.0096 -0.1923) |
| OKLCH | oklch(42.28% 0.193 272.9) |
| XYZ | xyz(10.9170, 6.7047, 43.8900) |
| Luminance | 0.0671 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.38
Blue Blue
#2242C7
ΔE00 4.15
Ocean Blue
#4F42B5
ΔE00 4.44
Blue With A Hint Of Purple
#533CC6
ΔE00 5.10
Blurple
#5539CC
ΔE00 5.71
Blueberry
#464196
ΔE00 5.98
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3237B4 #B4AF32
analogous
#3278B4 #3237B4 #6E32B4
triadic
#3237B4 #B43237 #37B432
tetradic
#3237B4 #B43278 #B4AF32 #32B46E
square
#3237B4 #B43278 #B4AF32 #32B46E
split-complementary
#3237B4 #B46E32 #78B432
monochromatic
#171A54 #252884 #3237B4 #5459CF #8487DD
Accessibility & contrast
On white
8.97
#3237B4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#3237B4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3237B4
8.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3237B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3237B4 | 1.00 | 8.97 | 2.34 | 8.97 |
| #FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FB8
Deuteranopia (green-blind)
#0043B2
Tritanopia (blue-blind)
#005971
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #3237b4; /* rgb */ color: rgb(50, 55, 180); /* oklch */ color: oklch(42.3% 0.193 272.9);
Tailwind
colors: {
custom: {
50: '#7d6ecc',
500: '#3237b4',
950: '#000000',
},
}SCSS
$custom: #3237b4; $custom-light: #7d6ecc; $custom-dark: #000000;
JSON
{
"hex": "#3237b4",
"rgb": {
"r": 50,
"g": 55,
"b": 180
},
"hsl": {
"h": 237.692,
"s": 56.522,
"l": 45.098
},
"oklch": {
"l": 0.4228,
"c": 0.19251,
"h": 272.9
},
"luminance": 0.06706
}Semantic roles & 50–950 ramp
primary
#3237B4
secondary
#C6C37C
accent
#DA48E0
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0713
muted
#7C7A82