#2A37B1#2A37B1
#2A37B1 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.191 H 270.4°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).
Color values
| HEX | #2A37B1 |
|---|---|
| RGB | rgb(42, 55, 177) |
| HSL | hsl(234, 62%, 43%) |
| HSV | hsv(234, 76%, 69%) |
| CMYK | cmyk(76.3%, 68.9%, 0%, 30.6%) |
| CIE-LAB | lab(30.39, 38.05, -65.92) |
| CIE-LCH | lch(30.39, 76.11, 299.99°) |
| OKLab | oklab(41.55% 0.0013 -0.1908) |
| OKLCH | oklch(41.55% 0.191 270.4) |
| XYZ | xyz(10.2541, 6.3978, 42.2809) |
| Luminance | 0.0640 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.42
Blue Blue
#2242C7
ΔE00 4.19
Ocean Blue
#4F42B5
ΔE00 5.16
Blueberry
#464196
ΔE00 6.02
Blue With A Hint Of Purple
#533CC6
ΔE00 6.04
Blue (survey)
#0343DF
ΔE00 6.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A37B1 #B1A42A
analogous
#2A7BB1 #2A37B1 #602AB1
triadic
#2A37B1 #B12A37 #37B12A
tetradic
#2A37B1 #B12A7B #B1A42A #2AB160
square
#2A37B1 #B12A7B #B1A42A #2AB160
split-complementary
#2A37B1 #B1602A #7BB12A
monochromatic
#13184E #1E2880 #2A37B1 #4553D3 #7781DF
Accessibility & contrast
On white
9.21
#2A37B1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.28
#2A37B1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A37B1
9.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A37B1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A37B1 | 1.00 | 9.21 | 2.28 | 9.21 |
| #FFFFFF | 9.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.28 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004EB5
Deuteranopia (green-blind)
#0041AF
Tritanopia (blue-blind)
#00586F
Achromatopsia (no color)
#484848
Design tokens & code
CSS
--color: #2a37b1; /* rgb */ color: rgb(42, 55, 177); /* oklch */ color: oklch(41.5% 0.191 270.4);
Tailwind
colors: {
custom: {
50: '#7a6ec9',
500: '#2a37b1',
950: '#000000',
},
}SCSS
$custom: #2a37b1; $custom-light: #7a6ec9; $custom-dark: #000000;
JSON
{
"hex": "#2a37b1",
"rgb": {
"r": 42,
"g": 55,
"b": 177
},
"hsl": {
"h": 234.222,
"s": 61.644,
"l": 42.941
},
"oklch": {
"l": 0.41546,
"c": 0.19079,
"h": 270.4
},
"luminance": 0.06399
}Semantic roles & 50–950 ramp
primary
#2A37B1
secondary
#C6BE70
accent
#D543E5
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82