#1C4BA9#1C4BA9
#1C4BA9 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.1% C 0.160 H 262.1°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1C4BA9 |
|---|---|
| RGB | rgb(28, 75, 169) |
| HSL | hsl(220, 72%, 39%) |
| HSV | hsv(220, 83%, 66%) |
| CMYK | cmyk(83.4%, 55.6%, 0%, 33.7%) |
| CIE-LAB | lab(34.28, 20.53, -54.82) |
| CIE-LCH | lch(34.28, 58.54, 290.53°) |
| OKLab | oklab(44.06% -0.0219 -0.1583) |
| OKLCH | oklch(44.06% 0.16 262.1) |
| XYZ | xyz(10.1538, 8.1424, 38.5649) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 1.49
Sapphire
#0F52BA
ΔE00 3.05
Cobalt (survey)
#1E488F
ΔE00 3.59
Dusk Blue
#26538D
ΔE00 4.93
Blue Blue
#2242C7
ΔE00 5.86
Darkish Blue
#014182
ΔE00 6.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C4BA9 #A97A1C
analogous
#1C91A9 #1C4BA9 #331CA9
triadic
#1C4BA9 #A91C4B #4BA91C
tetradic
#1C4BA9 #A91C91 #A97A1C #1CA933
square
#1C4BA9 #A91C91 #A97A1C #1CA933
split-complementary
#1C4BA9 #A9331C #91A91C
monochromatic
#0B1C40 #133474 #1C4BA9 #2763DB #5B89E4
Accessibility & contrast
On white
7.99
#1C4BA9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1C4BA9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C4BA9
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C4BA9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C4BA9 | 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)
#0057AC
Deuteranopia (green-blind)
#004AA7
Tritanopia (blue-blind)
#006272
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1c4ba9; /* rgb */ color: rgb(28, 75, 169); /* oklch */ color: oklch(44.1% 0.160 262.1);
Tailwind
colors: {
custom: {
50: '#727cc3',
500: '#1c4ba9',
950: '#000000',
},
}SCSS
$custom: #1c4ba9; $custom-light: #727cc3; $custom-dark: #000000;
JSON
{
"hex": "#1c4ba9",
"rgb": {
"r": 28,
"g": 75,
"b": 169
},
"hsl": {
"h": 220,
"s": 71.574,
"l": 38.627
},
"oklch": {
"l": 0.44059,
"c": 0.15978,
"h": 262.1
},
"luminance": 0.08144
}Semantic roles & 50–950 ramp
primary
#1C4BA9
secondary
#C8A359
accent
#B239EE
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#090913
muted
#7B7B82