#2B4AA9#2B4AA9
#2B4AA9 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.157 H 266.3°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).
Color values
| HEX | #2B4AA9 |
|---|---|
| RGB | rgb(43, 74, 169) |
| HSL | hsl(225, 59%, 42%) |
| HSV | hsv(225, 75%, 66%) |
| CMYK | cmyk(74.6%, 56.2%, 0%, 33.7%) |
| CIE-LAB | lab(34.55, 22.82, -54.36) |
| CIE-LCH | lch(34.55, 58.95, 292.78°) |
| OKLab | oklab(44.42% -0.0101 -0.1567) |
| OKLCH | oklch(44.42% 0.157 266.3) |
| XYZ | xyz(10.6040, 8.2746, 38.5667) |
| Luminance | 0.0828 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.54
Sapphire
#0F52BA
ΔE00 3.97
Cobalt (survey)
#1E488F
ΔE00 4.36
Blue Blue
#2242C7
ΔE00 5.01
Sapphire (survey)
#2138AB
ΔE00 5.68
Dusk Blue
#26538D
ΔE00 6.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B4AA9 #A98A2B
analogous
#2B89A9 #2B4AA9 #4B2BA9
triadic
#2B4AA9 #A92B4A #4AA92B
tetradic
#2B4AA9 #A92B89 #A98A2B #2BA94B
square
#2B4AA9 #A92B89 #A98A2B #2BA94B
split-complementary
#2B4AA9 #A94B2B #89A92B
monochromatic
#121F47 #1F3578 #2B4AA9 #4265CF #738DDB
Accessibility & contrast
On white
7.91
#2B4AA9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.66
#2B4AA9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B4AA9
7.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B4AA9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B4AA9 | 1.00 | 7.91 | 2.66 | 7.91 |
| #FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.66 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057AC
Deuteranopia (green-blind)
#004CA7
Tritanopia (blue-blind)
#006172
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #2b4aa9; /* rgb */ color: rgb(43, 74, 169); /* oklch */ color: oklch(44.4% 0.157 266.3);
Tailwind
colors: {
custom: {
50: '#767cc3',
500: '#2b4aa9',
950: '#000000',
},
}SCSS
$custom: #2b4aa9; $custom-light: #767cc3; $custom-dark: #000000;
JSON
{
"hex": "#2b4aa9",
"rgb": {
"r": 43,
"g": 74,
"b": 169
},
"hsl": {
"h": 225.238,
"s": 59.434,
"l": 41.569
},
"oklch": {
"l": 0.44416,
"c": 0.157,
"h": 266.3
},
"luminance": 0.08276
}Semantic roles & 50–950 ramp
primary
#2B4AA9
secondary
#C3AE6D
accent
#BC45E3
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82