#2A3CB0#2A3CB0
#2A3CB0 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.184 H 269.6°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).
Color values
| HEX | #2A3CB0 |
|---|---|
| RGB | rgb(42, 60, 176) |
| HSL | hsl(232, 61%, 43%) |
| HSV | hsv(232, 76%, 69%) |
| CMYK | cmyk(76.1%, 65.9%, 0%, 31%) |
| CIE-LAB | lab(31.48, 34.53, -63.54) |
| CIE-LCH | lch(31.48, 72.32, 298.52°) |
| OKLab | oklab(42.31% -0.0014 -0.1838) |
| OKLCH | oklch(42.31% 0.184 269.6) |
| XYZ | xyz(10.4045, 6.8574, 41.8411) |
| Luminance | 0.0686 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.43
Blue Blue
#2242C7
ΔE00 3.41
Ocean Blue
#4F42B5
ΔE00 4.91
Cobalt
#0047AB
ΔE00 5.53
Blueberry
#464196
ΔE00 5.53
Blue (survey)
#0343DF
ΔE00 6.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A3CB0 #B09E2A
analogous
#2A7FB0 #2A3CB0 #5B2AB0
triadic
#2A3CB0 #B02A3C #3CB02A
tetradic
#2A3CB0 #B02A7F #B09E2A #2AB05B
square
#2A3CB0 #B02A7F #B09E2A #2AB05B
split-complementary
#2A3CB0 #B05B2A #7FB02A
monochromatic
#121A4D #1E2B7F #2A3CB0 #4558D3 #7684DE
Accessibility & contrast
On white
8.85
#2A3CB0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.37
#2A3CB0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A3CB0
8.85:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A3CB0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A3CB0 | 1.00 | 8.85 | 2.37 | 8.85 |
| #FFFFFF | 8.85 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.37 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.85 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B4
Deuteranopia (green-blind)
#0044AE
Tritanopia (blue-blind)
#005B70
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #2a3cb0; /* rgb */ color: rgb(42, 60, 176); /* oklch */ color: oklch(42.3% 0.184 269.6);
Tailwind
colors: {
custom: {
50: '#7972c9',
500: '#2a3cb0',
950: '#000000',
},
}SCSS
$custom: #2a3cb0; $custom-light: #7972c9; $custom-dark: #000000;
JSON
{
"hex": "#2a3cb0",
"rgb": {
"r": 42,
"g": 60,
"b": 176
},
"hsl": {
"h": 231.94,
"s": 61.468,
"l": 42.745
},
"oklch": {
"l": 0.42308,
"c": 0.18383,
"h": 269.6
},
"luminance": 0.06859
}Semantic roles & 50–950 ramp
primary
#2A3CB0
secondary
#C6BA70
accent
#CF43E5
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82