#2B37B7#2B37B7
#2B37B7 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.198 H 270.5°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).
Color values
| HEX | #2B37B7 |
|---|---|
| RGB | rgb(43, 55, 183) |
| HSL | hsl(235, 62%, 44%) |
| HSV | hsv(235, 77%, 72%) |
| CMYK | cmyk(76.5%, 69.9%, 0%, 28.2%) |
| CIE-LAB | lab(31.03, 40.26, -68.44) |
| CIE-LCH | lch(31.03, 79.41, 300.47°) |
| OKLab | oklab(42.19% 0.0017 -0.1981) |
| OKLCH | oklch(42.19% 0.198 270.5) |
| XYZ | xyz(10.9068, 6.6637, 45.5020) |
| Luminance | 0.0667 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.17
Blue Blue
#2242C7
ΔE00 3.76
Ocean Blue
#4F42B5
ΔE00 4.91
Blue With A Hint Of Purple
#533CC6
ΔE00 5.43
Blurple
#5539CC
ΔE00 5.99
Blue (survey)
#0343DF
ΔE00 6.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B37B7 #B7AB2B
analogous
#2B7DB7 #2B37B7 #652BB7
triadic
#2B37B7 #B72B37 #37B72B
tetradic
#2B37B7 #B72B7D #B7AB2B #2BB765
square
#2B37B7 #B72B7D #B7AB2B #2BB765
split-complementary
#2B37B7 #B7652B #7DB72B
monochromatic
#141954 #1F2885 #2B37B7 #4B56D5 #7C85E0
Accessibility & contrast
On white
9.00
#2B37B7 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.33
#2B37B7 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B37B7
9.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B37B7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B37B7 | 1.00 | 9.00 | 2.33 | 9.00 |
| #FFFFFF | 9.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.33 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050BB
Deuteranopia (green-blind)
#0042B5
Tritanopia (blue-blind)
#005B73
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #2b37b7; /* rgb */ color: rgb(43, 55, 183); /* oklch */ color: oklch(42.2% 0.198 270.5);
Tailwind
colors: {
custom: {
50: '#7b6ece',
500: '#2b37b7',
950: '#000000',
},
}SCSS
$custom: #2b37b7; $custom-light: #7b6ece; $custom-dark: #000000;
JSON
{
"hex": "#2b37b7",
"rgb": {
"r": 43,
"g": 55,
"b": 183
},
"hsl": {
"h": 234.857,
"s": 61.947,
"l": 44.314
},
"oklch": {
"l": 0.42194,
"c": 0.19814,
"h": 270.5
},
"luminance": 0.06665
}Semantic roles & 50–950 ramp
primary
#2B37B7
secondary
#C9C175
accent
#D743E5
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82