#2748A9#2748A9
#2748A9 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.161 H 265.7°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).
Color values
| HEX | #2748A9 |
|---|---|
| RGB | rgb(39, 72, 169) |
| HSL | hsl(225, 63%, 41%) |
| HSV | hsv(225, 77%, 66%) |
| CMYK | cmyk(76.9%, 57.4%, 0%, 33.7%) |
| CIE-LAB | lab(33.84, 23.67, -55.52) |
| CIE-LCH | lch(33.84, 60.36, 293.09°) |
| OKLab | oklab(43.83% -0.012 -0.1602) |
| OKLCH | oklch(43.83% 0.161 265.7) |
| XYZ | xyz(10.3130, 7.9295, 38.5154) |
| Luminance | 0.0793 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.21
Sapphire
#0F52BA
ΔE00 4.29
Cobalt (survey)
#1E488F
ΔE00 4.30
Blue Blue
#2242C7
ΔE00 4.77
Sapphire (survey)
#2138AB
ΔE00 5.12
Dusk Blue
#26538D
ΔE00 6.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2748A9 #A98827
analogous
#2789A9 #2748A9 #4727A9
triadic
#2748A9 #A92748 #48A927
tetradic
#2748A9 #A92789 #A98827 #27A947
square
#2748A9 #A92789 #A98827 #27A947
split-complementary
#2748A9 #A94727 #89A927
monochromatic
#101E46 #1C3377 #2748A9 #3B62D2 #6D8ADD
Accessibility & contrast
On white
8.12
#2748A9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.59
#2748A9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2748A9
8.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2748A9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2748A9 | 1.00 | 8.12 | 2.59 | 8.12 |
| #FFFFFF | 8.12 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.59 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.12 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0056AC
Deuteranopia (green-blind)
#004AA7
Tritanopia (blue-blind)
#006071
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #2748a9; /* rgb */ color: rgb(39, 72, 169); /* oklch */ color: oklch(43.8% 0.161 265.7);
Tailwind
colors: {
custom: {
50: '#757ac3',
500: '#2748a9',
950: '#000000',
},
}SCSS
$custom: #2748a9; $custom-light: #757ac3; $custom-dark: #000000;
JSON
{
"hex": "#2748a9",
"rgb": {
"r": 39,
"g": 72,
"b": 169
},
"hsl": {
"h": 224.769,
"s": 62.5,
"l": 40.784
},
"oklch": {
"l": 0.43834,
"c": 0.16067,
"h": 265.7
},
"luminance": 0.07931
}Semantic roles & 50–950 ramp
primary
#2748A9
secondary
#C4AD68
accent
#BC42E6
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0913
muted
#7C7B82