#1C448C#1C448C
#1C448C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.128 H 261.0°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).
Color values
| HEX | #1C448C |
|---|---|
| RGB | rgb(28, 68, 140) |
| HSL | hsl(219, 67%, 33%) |
| HSV | hsv(219, 80%, 55%) |
| CMYK | cmyk(80%, 51.4%, 0%, 45.1%) |
| CIE-LAB | lab(30.09, 13.65, -44.02) |
| CIE-LCH | lch(30.09, 46.09, 287.22°) |
| OKLab | oklab(40.19% -0.02 -0.1267) |
| OKLCH | oklch(40.19% 0.128 261) |
| XYZ | xyz(7.2779, 6.2737, 25.6332) |
| Luminance | 0.0628 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.33
Darkish Blue
#014182
ΔE00 2.65
Twilight Blue
#0A437A
ΔE00 3.59
Cobalt
#0047AB
ΔE00 4.12
Prussian Blue
#004577
ΔE00 5.00
Dusk Blue
#26538D
ΔE00 5.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C448C #8C641C
analogous
#1C7C8C #1C448C #2C1C8C
triadic
#1C448C #8C1C44 #448C1C
tetradic
#1C448C #8C1C7C #8C641C #1C8C2C
square
#1C448C #8C1C7C #8C641C #1C8C2C
split-complementary
#1C448C #8C2C1C #7C8C1C
monochromatic
#081226 #122B59 #1C448C #265DBF #487CDA
Accessibility & contrast
On white
9.31
#1C448C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.26
#1C448C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C448C
9.31:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C448C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C448C | 1.00 | 9.31 | 2.26 | 9.31 |
| #FFFFFF | 9.31 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.26 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.31 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#184C8F
Deuteranopia (green-blind)
#00428B
Tritanopia (blue-blind)
#005561
Achromatopsia (no color)
#474747
Design tokens & code
CSS
--color: #1c448c; /* rgb */ color: rgb(28, 68, 140); /* oklch */ color: oklch(40.2% 0.128 261.0);
Tailwind
colors: {
custom: {
50: '#6b77ae',
500: '#1c448c',
950: '#000000',
},
}SCSS
$custom: #1c448c; $custom-light: #6b77ae; $custom-dark: #000000;
JSON
{
"hex": "#1c448c",
"rgb": {
"r": 28,
"g": 68,
"b": 140
},
"hsl": {
"h": 218.571,
"s": 66.667,
"l": 32.941
},
"oklch": {
"l": 0.40188,
"c": 0.12823,
"h": 261
},
"luminance": 0.06275
}Semantic roles & 50–950 ramp
primary
#1C448C
secondary
#BC9348
accent
#AC3EEA
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#080810
muted
#7A7B7F