#1C448E#1C448E
#1C448E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.3% C 0.131 H 261.4°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).
Color values
| HEX | #1C448E |
|---|---|
| RGB | rgb(28, 68, 142) |
| HSL | hsl(219, 67%, 33%) |
| HSV | hsv(219, 80%, 56%) |
| CMYK | cmyk(80.3%, 52.1%, 0%, 44.3%) |
| CIE-LAB | lab(30.24, 14.46, -45.02) |
| CIE-LCH | lch(30.24, 47.28, 287.80°) |
| OKLab | oklab(40.35% -0.0197 -0.1296) |
| OKLCH | oklch(40.35% 0.131 261.4) |
| XYZ | xyz(7.4267, 6.3332, 26.4170) |
| Luminance | 0.0633 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.36
Darkish Blue
#014182
ΔE00 2.88
Twilight Blue
#0A437A
ΔE00 3.85
Cobalt
#0047AB
ΔE00 3.87
Dusk Blue
#26538D
ΔE00 5.18
Prussian Blue
#004577
ΔE00 5.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C448E #8E661C
analogous
#1C7D8E #1C448E #2D1C8E
triadic
#1C448E #8E1C44 #448E1C
tetradic
#1C448E #8E1C7D #8E661C #1C8E2D
square
#1C448E #8E1C7D #8E661C #1C8E2D
split-complementary
#1C448E #8E2D1C #7D8E1C
monochromatic
#081328 #122C5B #1C448E #265CC1 #497CDB
Accessibility & contrast
On white
9.26
#1C448E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.27
#1C448E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C448E
9.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C448E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C448E | 1.00 | 9.26 | 2.27 | 9.26 |
| #FFFFFF | 9.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.27 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#144D91
Deuteranopia (green-blind)
#00428D
Tritanopia (blue-blind)
#005662
Achromatopsia (no color)
#474747
Design tokens & code
CSS
--color: #1c448e; /* rgb */ color: rgb(28, 68, 142); /* oklch */ color: oklch(40.3% 0.131 261.4);
Tailwind
colors: {
custom: {
50: '#6b77b0',
500: '#1c448e',
950: '#000000',
},
}SCSS
$custom: #1c448e; $custom-light: #6b77b0; $custom-dark: #000000;
JSON
{
"hex": "#1c448e",
"rgb": {
"r": 28,
"g": 68,
"b": 142
},
"hsl": {
"h": 218.947,
"s": 67.059,
"l": 33.333
},
"oklch": {
"l": 0.40345,
"c": 0.13108,
"h": 261.4
},
"luminance": 0.06334
}Semantic roles & 50–950 ramp
primary
#1C448E
secondary
#BD9449
accent
#AE3EEA
background
#F6F7FA
surface
#ECEDF5
border
#C7C8CF
text
#080810
muted
#7A7B7F