#1C4C99#1C4C99
#1C4C99 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.0% C 0.136 H 259.7°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).
Color values
| HEX | #1C4C99 |
|---|---|
| RGB | rgb(28, 76, 153) |
| HSL | hsl(217, 69%, 35%) |
| HSV | hsv(217, 82%, 60%) |
| CMYK | cmyk(81.7%, 50.3%, 0%, 40%) |
| CIE-LAB | lab(33.38, 13.44, -46.65) |
| CIE-LCH | lch(33.38, 48.55, 286.07°) |
| OKLab | oklab(43% -0.0245 -0.1342) |
| OKLCH | oklch(43% 0.136 259.7) |
| XYZ | xyz(8.8110, 7.7146, 31.1555) |
| Luminance | 0.0772 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.75
Dusk Blue
#26538D
ΔE00 3.01
Cobalt
#0047AB
ΔE00 3.03
Light Navy
#155084
ΔE00 4.32
Sapphire
#0F52BA
ΔE00 4.42
Darkish Blue
#014182
ΔE00 4.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C4C99 #99691C
analogous
#1C8A99 #1C4C99 #2A1C99
triadic
#1C4C99 #991C4C #4C991C
tetradic
#1C4C99 #991C8A #99691C #1C992A
square
#1C4C99 #991C8A #99691C #1C992A
split-complementary
#1C4C99 #992A1C #8A991C
monochromatic
#091932 #133265 #1C4C99 #2566CD #5087DF
Accessibility & contrast
On white
8.26
#1C4C99 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.54
#1C4C99 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C4C99
8.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C4C99 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C4C99 | 1.00 | 8.26 | 2.54 | 8.26 |
| #FFFFFF | 8.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.54 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1D559C
Deuteranopia (green-blind)
#004997
Tritanopia (blue-blind)
#005F6B
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1c4c99; /* rgb */ color: rgb(28, 76, 153); /* oklch */ color: oklch(43.0% 0.136 259.7);
Tailwind
colors: {
custom: {
50: '#6e7db8',
500: '#1c4c99',
950: '#000000',
},
}SCSS
$custom: #1c4c99; $custom-light: #6e7db8; $custom-dark: #000000;
JSON
{
"hex": "#1c4c99",
"rgb": {
"r": 28,
"g": 76,
"b": 153
},
"hsl": {
"h": 216.96,
"s": 69.061,
"l": 35.49
},
"oklch": {
"l": 0.43002,
"c": 0.13644,
"h": 259.7
},
"luminance": 0.07716
}Semantic roles & 50–950 ramp
primary
#1C4C99
secondary
#C2964F
accent
#A83CEC
background
#F7F7FB
surface
#EDEEF6
border
#C8C9D0
text
#080911
muted
#7B7B80