#2B3CAB#2B3CAB
#2B3CAB is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.177 H 270.0°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2B3CAB |
|---|---|
| RGB | rgb(43, 60, 171) |
| HSL | hsl(232, 60%, 42%) |
| HSV | hsv(232, 75%, 67%) |
| CMYK | cmyk(74.9%, 64.9%, 0%, 32.9%) |
| CIE-LAB | lab(31.08, 32.81, -61.21) |
| CIE-LCH | lch(31.08, 69.45, 298.19°) |
| OKLab | oklab(41.89% -0.0001 -0.177) |
| OKLCH | oklch(41.89% 0.177 270) |
| XYZ | xyz(9.9603, 6.6845, 39.2855) |
| Luminance | 0.0669 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.28
Blue Blue
#2242C7
ΔE00 4.00
Blueberry
#464196
ΔE00 5.07
Ocean Blue
#4F42B5
ΔE00 5.12
Cobalt
#0047AB
ΔE00 5.41
Blue With A Hint Of Purple
#533CC6
ΔE00 6.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B3CAB #AB9A2B
analogous
#2B7CAB #2B3CAB #5A2BAB
triadic
#2B3CAB #AB2B3C #3CAB2B
tetradic
#2B3CAB #AB2B7C #AB9A2B #2BAB5A
square
#2B3CAB #AB2B7C #AB9A2B #2BAB5A
split-complementary
#2B3CAB #AB5A2B #7CAB2B
monochromatic
#121A49 #1F2B7A #2B3CAB #4356D0 #7482DC
Accessibility & contrast
On white
8.99
#2B3CAB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#2B3CAB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B3CAB
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B3CAB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B3CAB | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FAF
Deuteranopia (green-blind)
#0043A9
Tritanopia (blue-blind)
#00596E
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #2b3cab; /* rgb */ color: rgb(43, 60, 171); /* oklch */ color: oklch(41.9% 0.177 270.0);
Tailwind
colors: {
custom: {
50: '#7871c5',
500: '#2b3cab',
950: '#000000',
},
}SCSS
$custom: #2b3cab; $custom-light: #7871c5; $custom-dark: #000000;
JSON
{
"hex": "#2b3cab",
"rgb": {
"r": 43,
"g": 60,
"b": 171
},
"hsl": {
"h": 232.031,
"s": 59.813,
"l": 41.961
},
"oklch": {
"l": 0.41888,
"c": 0.17698,
"h": 270
},
"luminance": 0.06686
}Semantic roles & 50–950 ramp
primary
#2B3CAB
secondary
#C4B86E
accent
#CE45E3
background
#F7F6FC
surface
#EEECF8
border
#C9C7D1
text
#0A0713
muted
#7C7A82