#283B6A#283B6A
#283B6A is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.085 H 265.8°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).
Color values
| HEX | #283B6A |
|---|---|
| RGB | rgb(40, 59, 106) |
| HSL | hsl(223, 45%, 29%) |
| HSV | hsv(223, 62%, 42%) |
| CMYK | cmyk(62.3%, 44.3%, 0%, 58.4%) |
| CIE-LAB | lab(25.62, 8.44, -29.80) |
| CIE-LCH | lch(25.62, 30.98, 285.81°) |
| OKLab | oklab(36.17% -0.0063 -0.0848) |
| OKLCH | oklch(36.17% 0.085 265.8) |
| XYZ | xyz(5.0397, 4.6192, 14.2589) |
| Luminance | 0.0462 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 4.81
Marine
#042E60
ΔE00 5.03
Darkish Blue
#014182
ΔE00 5.94
Twilight Blue
#0A437A
ΔE00 5.98
Navy Blue
#1B2A4A
ΔE00 6.70
Cobalt (survey)
#1E488F
ΔE00 6.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#283B6A #6A5728
analogous
#285C6A #283B6A #36286A
triadic
#283B6A #6A283B #3B6A28
tetradic
#283B6A #6A285C #6A5728 #286A36
square
#283B6A #6A285C #6A5728 #286A36
split-complementary
#283B6A #6A3628 #5C6A28
monochromatic
#080C16 #17223E #283B6A #395496 #506FBD
Accessibility & contrast
On white
10.91
#283B6A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.92
#283B6A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #283B6A
10.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##283B6A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##283B6A | 1.00 | 10.91 | 1.92 | 10.91 |
| #FFFFFF | 10.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#26406C
Deuteranopia (green-blind)
#1D3A69
Tritanopia (blue-blind)
#00454D
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #283b6a; /* rgb */ color: rgb(40, 59, 106); /* oklch */ color: oklch(36.2% 0.085 265.8);
Tailwind
colors: {
custom: {
50: '#687095',
500: '#283b6a',
950: '#000000',
},
}SCSS
$custom: #283b6a; $custom-light: #687095; $custom-dark: #000000;
JSON
{
"hex": "#283b6a",
"rgb": {
"r": 40,
"g": 59,
"b": 106
},
"hsl": {
"h": 222.727,
"s": 45.205,
"l": 28.627
},
"oklch": {
"l": 0.3617,
"c": 0.08501,
"h": 265.8
},
"luminance": 0.0462
}Semantic roles & 50–950 ramp
primary
#283B6A
secondary
#9D8751
accent
#AF53D5
background
#F6F6F9
surface
#EBECF1
border
#C6C7CB
text
#07070D
muted
#7A7A7E