#2F3BB1#2F3BB1
#2F3BB1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.185 H 271.3°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).
Color values
| HEX | #2F3BB1 |
|---|---|
| RGB | rgb(47, 59, 177) |
| HSL | hsl(234, 58%, 44%) |
| HSV | hsv(234, 73%, 69%) |
| CMYK | cmyk(73.4%, 66.7%, 0%, 30.6%) |
| CIE-LAB | lab(31.59, 36.06, -63.95) |
| CIE-LCH | lch(31.59, 73.41, 299.42°) |
| OKLab | oklab(42.49% 0.0042 -0.1849) |
| OKLCH | oklch(42.49% 0.185 271.3) |
| XYZ | xyz(10.6694, 6.9055, 42.3570) |
| Luminance | 0.0691 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.71
Blue Blue
#2242C7
ΔE00 3.53
Ocean Blue
#4F42B5
ΔE00 4.43
Blueberry
#464196
ΔE00 5.41
Blue With A Hint Of Purple
#533CC6
ΔE00 5.69
Blue (survey)
#0343DF
ΔE00 6.18
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F3BB1 #B1A52F
analogous
#2F7CB1 #2F3BB1 #642FB1
triadic
#2F3BB1 #B12F3B #3BB12F
tetradic
#2F3BB1 #B12F7C #B1A52F #2FB164
square
#2F3BB1 #B12F7C #B1A52F #2FB164
split-complementary
#2F3BB1 #B1642F #7CB12F
monochromatic
#151B50 #222B81 #2F3BB1 #4D59D0 #7E86DD
Accessibility & contrast
On white
8.82
#2F3BB1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#2F3BB1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F3BB1
8.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F3BB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F3BB1 | 1.00 | 8.82 | 2.38 | 8.82 |
| #FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B5
Deuteranopia (green-blind)
#0044AF
Tritanopia (blue-blind)
#005A71
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #2f3bb1; /* rgb */ color: rgb(47, 59, 177); /* oklch */ color: oklch(42.5% 0.185 271.3);
Tailwind
colors: {
custom: {
50: '#7b71c9',
500: '#2f3bb1',
950: '#000000',
},
}SCSS
$custom: #2f3bb1; $custom-light: #7b71c9; $custom-dark: #000000;
JSON
{
"hex": "#2f3bb1",
"rgb": {
"r": 47,
"g": 59,
"b": 177
},
"hsl": {
"h": 234.462,
"s": 58.036,
"l": 43.922
},
"oklch": {
"l": 0.42486,
"c": 0.18495,
"h": 271.3
},
"luminance": 0.06907
}Semantic roles & 50–950 ramp
primary
#2F3BB1
secondary
#C5BE76
accent
#D347E1
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82