#273CAD#273CAD
#273CAD is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.181 H 268.7°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #273CAD |
|---|---|
| RGB | rgb(39, 60, 173) |
| HSL | hsl(231, 63%, 42%) |
| HSV | hsv(231, 77%, 68%) |
| CMYK | cmyk(77.5%, 65.3%, 0%, 32.2%) |
| CIE-LAB | lab(31.06, 33.12, -62.44) |
| CIE-LCH | lch(31.06, 70.68, 297.94°) |
| OKLab | oklab(41.88% -0.0041 -0.1806) |
| OKLCH | oklch(41.88% 0.181 268.7) |
| XYZ | xyz(9.9928, 6.6791, 40.2896) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.19
Blue Blue
#2242C7
ΔE00 3.76
Cobalt
#0047AB
ΔE00 5.18
Ocean Blue
#4F42B5
ΔE00 5.35
Blueberry
#464196
ΔE00 5.47
Blue (survey)
#0343DF
ΔE00 6.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#273CAD #AD9827
analogous
#277FAD #273CAD #5527AD
triadic
#273CAD #AD273C #3CAD27
tetradic
#273CAD #AD277F #AD9827 #27AD55
square
#273CAD #AD277F #AD9827 #27AD55
split-complementary
#273CAD #AD5527 #7FAD27
monochromatic
#101949 #1C2B7B #273CAD #3E55D3 #7081DF
Accessibility & contrast
On white
8.99
#273CAD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#273CAD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #273CAD
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##273CAD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##273CAD | 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)
#0050B1
Deuteranopia (green-blind)
#0043AB
Tritanopia (blue-blind)
#005A6F
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #273cad; /* rgb */ color: rgb(39, 60, 173); /* oklch */ color: oklch(41.9% 0.181 268.7);
Tailwind
colors: {
custom: {
50: '#7771c6',
500: '#273cad',
950: '#000000',
},
}SCSS
$custom: #273cad; $custom-light: #7771c6; $custom-dark: #000000;
JSON
{
"hex": "#273cad",
"rgb": {
"r": 39,
"g": 60,
"b": 173
},
"hsl": {
"h": 230.597,
"s": 63.208,
"l": 41.569
},
"oklch": {
"l": 0.41881,
"c": 0.1807,
"h": 268.7
},
"luminance": 0.0668
}Semantic roles & 50–950 ramp
primary
#273CAD
secondary
#C6B76A
accent
#CC42E6
background
#F7F6FC
surface
#EEECF8
border
#C9C7D1
text
#0A0713
muted
#7C7A82