#031C3F#031C3F
#031C3F is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.1% C 0.074 H 257.1°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).
Color values
| HEX | #031C3F |
|---|---|
| RGB | rgb(3, 28, 63) |
| HSL | hsl(215, 91%, 13%) |
| HSV | hsv(215, 95%, 25%) |
| CMYK | cmyk(95.2%, 55.6%, 0%, 75.3%) |
| CIE-LAB | lab(10.62, 6.33, -25.07) |
| CIE-LCH | lch(10.62, 25.85, 284.18°) |
| OKLab | oklab(23.14% -0.0166 -0.0722) |
| OKLCH | oklch(23.14% 0.074 257.1) |
| XYZ | xyz(1.3497, 1.2086, 4.8638) |
| Luminance | 0.0121 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 3.11
Navy Blue
#1B2A4A
ΔE00 4.65
Navy Blue (survey)
#001146
ΔE00 5.74
Dark Navy Blue
#00022E
ΔE00 6.40
Dark Navy
#000435
ΔE00 6.48
Marine
#042E60
ΔE00 6.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#031C3F #3F2603
analogous
#033A3F #031C3F #08033F
triadic
#031C3F #3F031C #1C3F03
tetradic
#031C3F #3F033A #3F2603 #033F08
square
#031C3F #3F033A #3F2603 #033F08
split-complementary
#031C3F #3F0803 #3A3F03
monochromatic
#010D1D #010D1D #031C3F #063679 #0950B4
Accessibility & contrast
On white
16.91
#031C3F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#031C3F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #031C3F
16.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##031C3F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##031C3F | 1.00 | 16.91 | 1.24 | 16.91 |
| #FFFFFF | 16.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#072040
Deuteranopia (green-blind)
#001A3E
Tritanopia (blue-blind)
#00252A
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #031c3f; /* rgb */ color: rgb(3, 28, 63); /* oklch */ color: oklch(23.1% 0.074 257.1);
Tailwind
colors: {
custom: {
50: '#4f5774',
500: '#031c3f',
950: '#000000',
},
}SCSS
$custom: #031c3f; $custom-light: #4f5774; $custom-dark: #000000;
JSON
{
"hex": "#031c3f",
"rgb": {
"r": 3,
"g": 28,
"b": 63
},
"hsl": {
"h": 215,
"s": 90.909,
"l": 12.941
},
"oklch": {
"l": 0.23138,
"c": 0.07405,
"h": 257.1
},
"luminance": 0.01209
}Semantic roles & 50–950 ramp
primary
#031C3F
secondary
#81571D
accent
#A629FF
background
#F4F5F7
surface
#E7E9ED
border
#C3C5C8
text
#020308
muted
#78787B