#283B67#283B67
#283B67 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.080 H 265.0°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #283B67 |
|---|---|
| RGB | rgb(40, 59, 103) |
| HSL | hsl(222, 44%, 28%) |
| HSV | hsv(222, 61%, 40%) |
| CMYK | cmyk(61.2%, 42.7%, 0%, 59.6%) |
| CIE-LAB | lab(25.44, 7.31, -28.17) |
| CIE-LCH | lch(25.44, 29.10, 284.55°) |
| OKLab | oklab(35.97% -0.007 -0.08) |
| OKLCH | oklch(35.97% 0.08 265) |
| XYZ | xyz(4.8864, 4.5579, 13.4516) |
| Luminance | 0.0456 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 4.81
Marine
#042E60
ΔE00 5.02
Twilight Blue
#0A437A
ΔE00 6.07
Darkish Blue
#014182
ΔE00 6.17
Navy Blue
#1B2A4A
ΔE00 6.33
Cobalt (survey)
#1E488F
ΔE00 7.23
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#283B67 #675428
analogous
#285A67 #283B67 #342867
triadic
#283B67 #67283B #3B6728
tetradic
#283B67 #67285A #675428 #286734
square
#283B67 #67285A #675428 #286734
split-complementary
#283B67 #673428 #5A6728
monochromatic
#090D16 #17223B #283B67 #395493 #4F6FBB
Accessibility & contrast
On white
10.99
#283B67 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#283B67 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #283B67
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##283B67 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##283B67 | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#283F69
Deuteranopia (green-blind)
#203A66
Tritanopia (blue-blind)
#00454C
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #283b67; /* rgb */ color: rgb(40, 59, 103); /* oklch */ color: oklch(36.0% 0.080 265.0);
Tailwind
colors: {
custom: {
50: '#687092',
500: '#283b67',
950: '#000000',
},
}SCSS
$custom: #283b67; $custom-light: #687092; $custom-dark: #000000;
JSON
{
"hex": "#283b67",
"rgb": {
"r": 40,
"g": 59,
"b": 103
},
"hsl": {
"h": 221.905,
"s": 44.056,
"l": 28.039
},
"oklch": {
"l": 0.35967,
"c": 0.08029,
"h": 265
},
"luminance": 0.04558
}Semantic roles & 50–950 ramp
primary
#283B67
secondary
#9A8451
accent
#AD54D4
background
#F6F6F9
surface
#EBECF1
border
#C6C7CB
text
#06070D
muted
#7A7A7E