#2B3BB6#2B3BB6
#2B3BB6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.192 H 269.9°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).
Color values
| HEX | #2B3BB6 |
|---|---|
| RGB | rgb(43, 59, 182) |
| HSL | hsl(233, 62%, 44%) |
| HSV | hsv(233, 76%, 71%) |
| CMYK | cmyk(76.4%, 67.6%, 0%, 28.6%) |
| CIE-LAB | lab(31.85, 37.43, -66.50) |
| CIE-LCH | lch(31.85, 76.31, 299.37°) |
| OKLab | oklab(42.76% -0.0003 -0.1925) |
| OKLCH | oklch(42.76% 0.192 269.9) |
| XYZ | xyz(11.0008, 7.0177, 45.0217) |
| Luminance | 0.0702 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.97
Blue Blue
#2242C7
ΔE00 2.98
Ocean Blue
#4F42B5
ΔE00 4.62
Blue (survey)
#0343DF
ΔE00 5.56
Blue With A Hint Of Purple
#533CC6
ΔE00 5.58
Blueberry
#464196
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B3BB6 #B6A62B
analogous
#2B80B6 #2B3BB6 #612BB6
triadic
#2B3BB6 #B62B3B #3BB62B
tetradic
#2B3BB6 #B62B80 #B6A62B #2BB661
square
#2B3BB6 #B62B80 #B6A62B #2BB661
split-complementary
#2B3BB6 #B6612B #80B62B
monochromatic
#141B53 #1F2B84 #2B3BB6 #4A5AD4 #7B87E0
Accessibility & contrast
On white
8.74
#2B3BB6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.40
#2B3BB6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B3BB6
8.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B3BB6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B3BB6 | 1.00 | 8.74 | 2.40 | 8.74 |
| #FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052BA
Deuteranopia (green-blind)
#0044B4
Tritanopia (blue-blind)
#005C73
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #2b3bb6; /* rgb */ color: rgb(43, 59, 182); /* oklch */ color: oklch(42.8% 0.192 269.9);
Tailwind
colors: {
custom: {
50: '#7b71cd',
500: '#2b3bb6',
950: '#000000',
},
}SCSS
$custom: #2b3bb6; $custom-light: #7b71cd; $custom-dark: #000000;
JSON
{
"hex": "#2b3bb6",
"rgb": {
"r": 43,
"g": 59,
"b": 182
},
"hsl": {
"h": 233.094,
"s": 61.778,
"l": 44.118
},
"oklch": {
"l": 0.42758,
"c": 0.19246,
"h": 269.9
},
"luminance": 0.07019
}Semantic roles & 50–950 ramp
primary
#2B3BB6
secondary
#C8BF75
accent
#D243E5
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82