#1C4D9D#1C4D9D
#1C4D9D is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.141 H 259.9°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).
Color values
| HEX | #1C4D9D |
|---|---|
| RGB | rgb(28, 77, 157) |
| HSL | hsl(217, 70%, 36%) |
| HSV | hsv(217, 82%, 62%) |
| CMYK | cmyk(82.2%, 51%, 0%, 38.4%) |
| CIE-LAB | lab(33.96, 14.37, -48.14) |
| CIE-LCH | lch(33.96, 50.24, 286.63°) |
| OKLab | oklab(43.53% -0.0247 -0.1386) |
| OKLCH | oklch(43.53% 0.141 259.9) |
| XYZ | xyz(9.2164, 7.9878, 32.9478) |
| Luminance | 0.0799 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 2.29
Cobalt
#0047AB
ΔE00 2.83
Dusk Blue
#26538D
ΔE00 3.09
Sapphire
#0F52BA
ΔE00 3.85
Light Navy
#155084
ΔE00 4.55
Darkish Blue
#014182
ΔE00 5.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C4D9D #9D6C1C
analogous
#1C8E9D #1C4D9D #2B1C9D
triadic
#1C4D9D #9D1C4D #4D9D1C
tetradic
#1C4D9D #9D1C8E #9D6C1C #1C9D2B
square
#1C4D9D #9D1C8E #9D6C1C #1C9D2B
split-complementary
#1C4D9D #9D2B1C #8E9D1C
monochromatic
#091A35 #133469 #1C4D9D #2566D1 #5389E0
Accessibility & contrast
On white
8.08
#1C4D9D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.60
#1C4D9D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C4D9D
8.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C4D9D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C4D9D | 1.00 | 8.08 | 2.60 | 8.08 |
| #FFFFFF | 8.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.60 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1B56A0
Deuteranopia (green-blind)
#004A9B
Tritanopia (blue-blind)
#00606D
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #1c4d9d; /* rgb */ color: rgb(28, 77, 157); /* oklch */ color: oklch(43.5% 0.141 259.9);
Tailwind
colors: {
custom: {
50: '#6f7eba',
500: '#1c4d9d',
950: '#000000',
},
}SCSS
$custom: #1c4d9d; $custom-light: #6f7eba; $custom-dark: #000000;
JSON
{
"hex": "#1c4d9d",
"rgb": {
"r": 28,
"g": 77,
"b": 157
},
"hsl": {
"h": 217.209,
"s": 69.73,
"l": 36.275
},
"oklch": {
"l": 0.43534,
"c": 0.14076,
"h": 259.9
},
"luminance": 0.07989
}Semantic roles & 50–950 ramp
primary
#1C4D9D
secondary
#C39851
accent
#A93BED
background
#F7F7FB
surface
#EDEEF6
border
#C8C9D0
text
#080912
muted
#7B7B81