#04143B#04143B
#04143B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.079 H 263.0°. Best body text is #FFFFFF at 17.97:1 contrast (WCAG AA passes).
Color values
| HEX | #04143B |
|---|---|
| RGB | rgb(4, 20, 59) |
| HSL | hsl(223, 87%, 12%) |
| HSV | hsv(223, 93%, 23%) |
| CMYK | cmyk(93.2%, 66.1%, 0%, 76.9%) |
| CIE-LAB | lab(7.60, 10.99, -27.10) |
| CIE-LCH | lch(7.60, 29.25, 292.08°) |
| OKLab | oklab(20.74% -0.0096 -0.0784) |
| OKLCH | oklch(20.74% 0.079 263) |
| XYZ | xyz(1.0894, 0.8418, 4.2419) |
| Luminance | 0.0084 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 0.87
Dark Navy
#000435
ΔE00 3.30
Dark Navy Blue
#00022E
ΔE00 3.39
Navy Blue (survey)
#001146
ΔE00 3.51
Very Dark Blue
#000133
ΔE00 3.70
Midnight
#03012D
ΔE00 3.78
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#04143B #3B2B04
analogous
#04303B #04143B #0F043B
triadic
#04143B #3B0414 #143B04
tetradic
#04143B #3B0430 #3B2B04 #043B0F
square
#04143B #3B0430 #3B2B04 #043B0F
split-complementary
#04143B #3B0F04 #303B04
monochromatic
#020A1D #020A1D #04143B #082774 #0C3BAE
Accessibility & contrast
On white
17.97
#04143B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.17
#04143B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #04143B
17.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##04143B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##04143B | 1.00 | 17.97 | 1.17 | 17.97 |
| #FFFFFF | 17.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.17 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00193C
Deuteranopia (green-blind)
#00143A
Tritanopia (blue-blind)
#001E25
Achromatopsia (no color)
#171717
Design tokens & code
CSS
--color: #04143b; /* rgb */ color: rgb(4, 20, 59); /* oklch */ color: oklch(20.7% 0.079 263.0);
Tailwind
colors: {
custom: {
50: '#4f5071',
500: '#04143b',
950: '#000000',
},
}SCSS
$custom: #04143b; $custom-light: #4f5071; $custom-dark: #000000;
JSON
{
"hex": "#04143b",
"rgb": {
"r": 4,
"g": 20,
"b": 59
},
"hsl": {
"h": 222.545,
"s": 87.302,
"l": 12.353
},
"oklch": {
"l": 0.20737,
"c": 0.07896,
"h": 263
},
"luminance": 0.00842
}Semantic roles & 50–950 ramp
primary
#04143B
secondary
#7D611E
accent
#C02AFD
background
#F4F4F6
surface
#E7E7EC
border
#C3C3C7
text
#020208
muted
#78787B