#2447B2#2447B2
#2447B2 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.175 H 265.6°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).
Color values
| HEX | #2447B2 |
|---|---|
| RGB | rgb(36, 71, 178) |
| HSL | hsl(225, 66%, 42%) |
| HSV | hsv(225, 80%, 70%) |
| CMYK | cmyk(79.8%, 60.1%, 0%, 30.2%) |
| CIE-LAB | lab(34.18, 27.47, -60.32) |
| CIE-LCH | lch(34.18, 66.29, 294.49°) |
| OKLab | oklab(44.29% -0.0133 -0.1744) |
| OKLCH | oklch(44.29% 0.175 265.6) |
| XYZ | xyz(11.0138, 8.0946, 43.0928) |
| Luminance | 0.0810 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.65
Blue Blue
#2242C7
ΔE00 3.47
Sapphire
#0F52BA
ΔE00 4.31
Sapphire (survey)
#2138AB
ΔE00 4.65
Cobalt (survey)
#1E488F
ΔE00 5.50
Blue (survey)
#0343DF
ΔE00 5.81
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2447B2 #B28F24
analogous
#248EB2 #2447B2 #4824B2
triadic
#2447B2 #B22447 #47B224
tetradic
#2447B2 #B2248E #B28F24 #24B248
square
#2447B2 #B2248E #B28F24 #24B248
split-complementary
#2447B2 #B24824 #8EB224
monochromatic
#0F1E4C #1A337F #2447B2 #3C62D8 #6F8BE2
Accessibility & contrast
On white
8.02
#2447B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.62
#2447B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2447B2
8.02:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2447B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2447B2 | 1.00 | 8.02 | 2.62 | 8.02 |
| #FFFFFF | 8.02 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.02 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057B6
Deuteranopia (green-blind)
#004AB0
Tritanopia (blue-blind)
#006275
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #2447b2; /* rgb */ color: rgb(36, 71, 178); /* oklch */ color: oklch(44.3% 0.175 265.6);
Tailwind
colors: {
custom: {
50: '#7679ca',
500: '#2447b2',
950: '#000000',
},
}SCSS
$custom: #2447b2; $custom-light: #7679ca; $custom-dark: #000000;
JSON
{
"hex": "#2447b2",
"rgb": {
"r": 36,
"g": 71,
"b": 178
},
"hsl": {
"h": 225.211,
"s": 66.355,
"l": 41.961
},
"oklch": {
"l": 0.44285,
"c": 0.1749,
"h": 265.6
},
"luminance": 0.08096
}Semantic roles & 50–950 ramp
primary
#2447B2
secondary
#C8B169
accent
#BF3FE9
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0913
muted
#7C7B82