#2F37B7#2F37B7
#2F37B7 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.197 H 271.7°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).
Color values
| HEX | #2F37B7 |
|---|---|
| RGB | rgb(47, 55, 183) |
| HSL | hsl(236, 59%, 45%) |
| HSV | hsv(236, 74%, 72%) |
| CMYK | cmyk(74.3%, 69.9%, 0%, 28.2%) |
| CIE-LAB | lab(31.24, 40.65, -68.09) |
| CIE-LCH | lch(31.24, 79.30, 300.84°) |
| OKLab | oklab(42.41% 0.0059 -0.197) |
| OKLCH | oklch(42.41% 0.197 271.7) |
| XYZ | xyz(11.0828, 6.7545, 45.5102) |
| Luminance | 0.0676 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.44
Blue Blue
#2242C7
ΔE00 3.85
Ocean Blue
#4F42B5
ΔE00 4.61
Blue With A Hint Of Purple
#533CC6
ΔE00 5.10
Blurple
#5539CC
ΔE00 5.67
Blue (survey)
#0343DF
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F37B7 #B7AF2F
analogous
#2F7BB7 #2F37B7 #6B2FB7
triadic
#2F37B7 #B72F37 #37B72F
tetradic
#2F37B7 #B72F7B #B7AF2F #2FB76B
square
#2F37B7 #B72F7B #B7AF2F #2FB76B
split-complementary
#2F37B7 #B76B2F #7BB72F
monochromatic
#161A56 #222886 #2F37B7 #5159D2 #8287DF
Accessibility & contrast
On white
8.93
#2F37B7 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#2F37B7 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F37B7
8.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F37B7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F37B7 | 1.00 | 8.93 | 2.35 | 8.93 |
| #FFFFFF | 8.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050BB
Deuteranopia (green-blind)
#0043B5
Tritanopia (blue-blind)
#005A73
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #2f37b7; /* rgb */ color: rgb(47, 55, 183); /* oklch */ color: oklch(42.4% 0.197 271.7);
Tailwind
colors: {
custom: {
50: '#7d6ece',
500: '#2f37b7',
950: '#000000',
},
}SCSS
$custom: #2f37b7; $custom-light: #7d6ece; $custom-dark: #000000;
JSON
{
"hex": "#2f37b7",
"rgb": {
"r": 47,
"g": 55,
"b": 183
},
"hsl": {
"h": 236.471,
"s": 59.13,
"l": 45.098
},
"oklch": {
"l": 0.42405,
"c": 0.19709,
"h": 271.7
},
"luminance": 0.06756
}Semantic roles & 50–950 ramp
primary
#2F37B7
secondary
#C8C37A
accent
#D945E2
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82