#1C48B3#1C48B3
#1C48B3 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.177 H 263.7°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1C48B3 |
|---|---|
| RGB | rgb(28, 72, 179) |
| HSL | hsl(223, 73%, 41%) |
| HSV | hsv(223, 84%, 70%) |
| CMYK | cmyk(84.4%, 59.8%, 0%, 29.8%) |
| CIE-LAB | lab(34.26, 26.50, -60.79) |
| CIE-LCH | lch(34.26, 66.32, 293.55°) |
| OKLab | oklab(44.3% -0.0194 -0.1759) |
| OKLCH | oklch(44.3% 0.177 263.7) |
| XYZ | xyz(10.9300, 8.1349, 43.6332) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.04
Sapphire
#0F52BA
ΔE00 3.67
Blue Blue
#2242C7
ΔE00 3.87
Sapphire (survey)
#2138AB
ΔE00 5.19
Cobalt (survey)
#1E488F
ΔE00 5.20
Blue (survey)
#0343DF
ΔE00 5.95
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C48B3 #B3871C
analogous
#1C93B3 #1C48B3 #3C1CB3
triadic
#1C48B3 #B31C48 #48B31C
tetradic
#1C48B3 #B31C93 #B3871C #1CB33C
square
#1C48B3 #B31C93 #B3871C #1CB33C
split-complementary
#1C48B3 #B33C1C #93B31C
monochromatic
#0B1D49 #14337E #1C48B3 #2E61DE #6389E7
Accessibility & contrast
On white
7.99
#1C48B3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1C48B3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C48B3
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C48B3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C48B3 | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0058B7
Deuteranopia (green-blind)
#004AB1
Tritanopia (blue-blind)
#006376
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1c48b3; /* rgb */ color: rgb(28, 72, 179); /* oklch */ color: oklch(44.3% 0.177 263.7);
Tailwind
colors: {
custom: {
50: '#757acb',
500: '#1c48b3',
950: '#000000',
},
}SCSS
$custom: #1c48b3; $custom-light: #757acb; $custom-dark: #000000;
JSON
{
"hex": "#1c48b3",
"rgb": {
"r": 28,
"g": 72,
"b": 179
},
"hsl": {
"h": 222.517,
"s": 72.947,
"l": 40.588
},
"oklch": {
"l": 0.44299,
"c": 0.17694,
"h": 263.7
},
"luminance": 0.08136
}Semantic roles & 50–950 ramp
primary
#1C48B3
secondary
#CBAC5F
accent
#BA38F0
background
#F7F7FC
surface
#EEEDF9
border
#C9C8D2
text
#0A0913
muted
#7C7B82