#2A37B9#2A37B9
#2A37B9 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.3% C 0.201 H 270.1°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).
Color values
| HEX | #2A37B9 |
|---|---|
| RGB | rgb(42, 55, 185) |
| HSL | hsl(235, 63%, 45%) |
| HSV | hsv(235, 77%, 73%) |
| CMYK | cmyk(77.3%, 70.3%, 0%, 27.5%) |
| CIE-LAB | lab(31.18, 40.87, -69.39) |
| CIE-LCH | lch(31.18, 80.53, 300.50°) |
| OKLab | oklab(42.35% 0.0005 -0.2009) |
| OKLCH | oklch(42.35% 0.201 270.1) |
| XYZ | xyz(11.0750, 6.7262, 46.6041) |
| Luminance | 0.0673 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.36
Blue Blue
#2242C7
ΔE00 3.62
Ocean Blue
#4F42B5
ΔE00 4.95
Blue With A Hint Of Purple
#533CC6
ΔE00 5.35
Blue (survey)
#0343DF
ΔE00 5.79
Blurple
#5539CC
ΔE00 5.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A37B9 #B9AC2A
analogous
#2A7FB9 #2A37B9 #642AB9
triadic
#2A37B9 #B92A37 #37B92A
tetradic
#2A37B9 #B92A7F #B9AC2A #2AB964
square
#2A37B9 #B92A7F #B9AC2A #2AB964
split-complementary
#2A37B9 #B9642A #7FB92A
monochromatic
#131955 #1F2887 #2A37B9 #4A57D6 #7C85E1
Accessibility & contrast
On white
8.95
#2A37B9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#2A37B9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A37B9
8.95:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A37B9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A37B9 | 1.00 | 8.95 | 2.35 | 8.95 |
| #FFFFFF | 8.95 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.95 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050BD
Deuteranopia (green-blind)
#0042B7
Tritanopia (blue-blind)
#005B74
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #2a37b9; /* rgb */ color: rgb(42, 55, 185); /* oklch */ color: oklch(42.3% 0.201 270.1);
Tailwind
colors: {
custom: {
50: '#7b6ecf',
500: '#2a37b9',
950: '#000000',
},
}SCSS
$custom: #2a37b9; $custom-light: #7b6ecf; $custom-dark: #000000;
JSON
{
"hex": "#2a37b9",
"rgb": {
"r": 42,
"g": 55,
"b": 185
},
"hsl": {
"h": 234.545,
"s": 62.996,
"l": 44.51
},
"oklch": {
"l": 0.42345,
"c": 0.2009,
"h": 270.1
},
"luminance": 0.06727
}Semantic roles & 50–950 ramp
primary
#2A37B9
secondary
#CAC275
accent
#D742E6
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82