#1C4499#1C4499
#1C4499 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.2% C 0.147 H 262.8°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1C4499 |
|---|---|
| RGB | rgb(28, 68, 153) |
| HSL | hsl(221, 69%, 35%) |
| HSV | hsv(221, 82%, 60%) |
| CMYK | cmyk(81.7%, 55.6%, 0%, 40%) |
| CIE-LAB | lab(31.07, 18.90, -50.40) |
| CIE-LCH | lch(31.07, 53.82, 290.55°) |
| OKLab | oklab(41.24% -0.0185 -0.1454) |
| OKLCH | oklch(41.24% 0.147 262.8) |
| XYZ | xyz(8.2937, 6.6800, 30.9831) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 2.32
Cobalt
#0047AB
ΔE00 2.59
Darkish Blue
#014182
ΔE00 4.27
Twilight Blue
#0A437A
ΔE00 5.28
Sapphire (survey)
#2138AB
ΔE00 5.60
Dusk Blue
#26538D
ΔE00 5.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C4499 #99711C
analogous
#1C8299 #1C4499 #321C99
triadic
#1C4499 #991C44 #44991C
tetradic
#1C4499 #991C82 #99711C #1C9932
square
#1C4499 #991C82 #99711C #1C9932
split-complementary
#1C4499 #99321C #82991C
monochromatic
#091632 #132D65 #1C4499 #255BCD #507EDF
Accessibility & contrast
On white
8.99
#1C4499 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#1C4499 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C4499
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C4499 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C4499 | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004F9C
Deuteranopia (green-blind)
#004497
Tritanopia (blue-blind)
#005967
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #1c4499; /* rgb */ color: rgb(28, 68, 153); /* oklch */ color: oklch(41.2% 0.147 262.8);
Tailwind
colors: {
custom: {
50: '#6e77b8',
500: '#1c4499',
950: '#000000',
},
}SCSS
$custom: #1c4499; $custom-light: #6e77b8; $custom-dark: #000000;
JSON
{
"hex": "#1c4499",
"rgb": {
"r": 28,
"g": 68,
"b": 153
},
"hsl": {
"h": 220.8,
"s": 69.061,
"l": 35.49
},
"oklch": {
"l": 0.41238,
"c": 0.14658,
"h": 262.8
},
"luminance": 0.06681
}Semantic roles & 50–950 ramp
primary
#1C4499
secondary
#C29D4F
accent
#B43CEC
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#080811
muted
#7B7B80