#2448B2#2448B2
#2448B2 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.5% C 0.174 H 265.4°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).
Color values
| HEX | #2448B2 |
|---|---|
| RGB | rgb(36, 72, 178) |
| HSL | hsl(225, 66%, 42%) |
| HSV | hsv(225, 80%, 70%) |
| CMYK | cmyk(79.8%, 59.6%, 0%, 30.2%) |
| CIE-LAB | lab(34.44, 26.81, -59.89) |
| CIE-LCH | lch(34.44, 65.62, 294.11°) |
| OKLab | oklab(44.48% -0.014 -0.1731) |
| OKLCH | oklch(44.48% 0.174 265.4) |
| XYZ | xyz(11.0780, 8.2229, 43.1142) |
| Luminance | 0.0822 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.53
Blue Blue
#2242C7
ΔE00 3.67
Sapphire
#0F52BA
ΔE00 3.99
Sapphire (survey)
#2138AB
ΔE00 4.98
Cobalt (survey)
#1E488F
ΔE00 5.38
Blue (survey)
#0343DF
ΔE00 5.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2448B2 #B28E24
analogous
#248FB2 #2448B2 #4724B2
triadic
#2448B2 #B22448 #48B224
tetradic
#2448B2 #B2248F #B28E24 #24B247
square
#2448B2 #B2248F #B28E24 #24B247
split-complementary
#2448B2 #B24724 #8FB224
monochromatic
#0F1F4C #1A337F #2448B2 #3C63D8 #6F8CE2
Accessibility & contrast
On white
7.94
#2448B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.64
#2448B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2448B2
7.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2448B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2448B2 | 1.00 | 7.94 | 2.64 | 7.94 |
| #FFFFFF | 7.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.64 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0058B6
Deuteranopia (green-blind)
#004BB0
Tritanopia (blue-blind)
#006376
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #2448b2; /* rgb */ color: rgb(36, 72, 178); /* oklch */ color: oklch(44.5% 0.174 265.4);
Tailwind
colors: {
custom: {
50: '#767aca',
500: '#2448b2',
950: '#000000',
},
}SCSS
$custom: #2448b2; $custom-light: #767aca; $custom-dark: #000000;
JSON
{
"hex": "#2448b2",
"rgb": {
"r": 36,
"g": 72,
"b": 178
},
"hsl": {
"h": 224.789,
"s": 66.355,
"l": 41.961
},
"oklch": {
"l": 0.44482,
"c": 0.17367,
"h": 265.4
},
"luminance": 0.08224
}Semantic roles & 50–950 ramp
primary
#2448B2
secondary
#C8B069
accent
#BE3FE9
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0913
muted
#7C7B82