#1C48AD#1C48AD
#1C48AD is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.169 H 263.3°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).
Color values
| HEX | #1C48AD |
|---|---|
| RGB | rgb(28, 72, 173) |
| HSL | hsl(222, 72%, 39%) |
| HSV | hsv(222, 84%, 68%) |
| CMYK | cmyk(83.8%, 58.4%, 0%, 32.2%) |
| CIE-LAB | lab(33.77, 24.14, -58.03) |
| CIE-LCH | lch(33.77, 62.85, 292.59°) |
| OKLab | oklab(43.78% -0.0197 -0.1678) |
| OKLCH | oklch(43.78% 0.169 263.3) |
| XYZ | xyz(10.3364, 7.8975, 40.5066) |
| Luminance | 0.0790 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 1.43
Sapphire
#0F52BA
ΔE00 3.73
Cobalt (survey)
#1E488F
ΔE00 4.34
Blue Blue
#2242C7
ΔE00 4.66
Sapphire (survey)
#2138AB
ΔE00 5.35
Dusk Blue
#26538D
ΔE00 6.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C48AD #AD811C
analogous
#1C91AD #1C48AD #391CAD
triadic
#1C48AD #AD1C48 #48AD1C
tetradic
#1C48AD #AD1C91 #AD811C #1CAD39
square
#1C48AD #AD1C91 #AD811C #1CAD39
split-complementary
#1C48AD #AD391C #91AD1C
monochromatic
#0B1C44 #133278 #1C48AD #2A60DC #5E87E5
Accessibility & contrast
On white
8.14
#1C48AD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.58
#1C48AD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C48AD
8.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C48AD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C48AD | 1.00 | 8.14 | 2.58 | 8.14 |
| #FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0056B0
Deuteranopia (green-blind)
#0049AB
Tritanopia (blue-blind)
#006273
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1c48ad; /* rgb */ color: rgb(28, 72, 173); /* oklch */ color: oklch(43.8% 0.169 263.3);
Tailwind
colors: {
custom: {
50: '#737ac6',
500: '#1c48ad',
950: '#000000',
},
}SCSS
$custom: #1c48ad; $custom-light: #737ac6; $custom-dark: #000000;
JSON
{
"hex": "#1c48ad",
"rgb": {
"r": 28,
"g": 72,
"b": 173
},
"hsl": {
"h": 221.793,
"s": 72.139,
"l": 39.412
},
"oklch": {
"l": 0.43775,
"c": 0.16892,
"h": 263.3
},
"luminance": 0.07899
}Semantic roles & 50–950 ramp
primary
#1C48AD
secondary
#C9A85C
accent
#B839EF
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0913
muted
#7C7B82