#2B4FA1#2B4FA1
#2B4FA1 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.8% C 0.139 H 263.8°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).
Color values
| HEX | #2B4FA1 |
|---|---|
| RGB | rgb(43, 79, 161) |
| HSL | hsl(222, 58%, 40%) |
| HSV | hsv(222, 73%, 63%) |
| CMYK | cmyk(73.3%, 50.9%, 0%, 36.9%) |
| CIE-LAB | lab(35.36, 16.42, -48.26) |
| CIE-LCH | lch(35.36, 50.98, 288.79°) |
| OKLab | oklab(44.84% -0.015 -0.1387) |
| OKLCH | oklch(44.84% 0.139 263.8) |
| XYZ | xyz(10.2230, 8.6777, 34.8475) |
| Luminance | 0.0868 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 3.24
Cobalt (survey)
#1E488F
ΔE00 3.36
Sapphire
#0F52BA
ΔE00 3.46
Dusk Blue
#26538D
ΔE00 3.88
Denim Blue
#3B5B92
ΔE00 4.62
Light Navy Blue
#2E5A88
ΔE00 5.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B4FA1 #A17D2B
analogous
#2B8AA1 #2B4FA1 #422BA1
triadic
#2B4FA1 #A12B4F #4FA12B
tetradic
#2B4FA1 #A12B8A #A17D2B #2BA142
square
#2B4FA1 #A12B8A #A17D2B #2BA142
split-complementary
#2B4FA1 #A1422B #8AA12B
monochromatic
#112040 #1E3771 #2B4FA1 #3E69CB #6E8ED8
Accessibility & contrast
On white
7.68
#2B4FA1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.74
#2B4FA1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B4FA1
7.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B4FA1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B4FA1 | 1.00 | 7.68 | 2.74 | 7.68 |
| #FFFFFF | 7.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.74 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1E59A4
Deuteranopia (green-blind)
#004E9F
Tritanopia (blue-blind)
#006370
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #2b4fa1; /* rgb */ color: rgb(43, 79, 161); /* oklch */ color: oklch(44.8% 0.139 263.8);
Tailwind
colors: {
custom: {
50: '#747fbd',
500: '#2b4fa1',
950: '#000000',
},
}SCSS
$custom: #2b4fa1; $custom-light: #747fbd; $custom-dark: #000000;
JSON
{
"hex": "#2b4fa1",
"rgb": {
"r": 43,
"g": 79,
"b": 161
},
"hsl": {
"h": 221.695,
"s": 57.843,
"l": 40
},
"oklch": {
"l": 0.44843,
"c": 0.13947,
"h": 263.8
},
"luminance": 0.08679
}Semantic roles & 50–950 ramp
primary
#2B4FA1
secondary
#BFA569
accent
#B247E1
background
#F7F7FB
surface
#EEEEF7
border
#C9C9D0
text
#090A12
muted
#7B7C81