#283BAF#283BAF
#283BAF is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.184 H 269.2°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #283BAF |
|---|---|
| RGB | rgb(40, 59, 175) |
| HSL | hsl(232, 63%, 42%) |
| HSV | hsv(232, 77%, 69%) |
| CMYK | cmyk(77.1%, 66.3%, 0%, 31.4%) |
| CIE-LAB | lab(31.05, 34.60, -63.65) |
| CIE-LCH | lch(31.05, 72.45, 298.53°) |
| OKLab | oklab(41.94% -0.0027 -0.1842) |
| OKLCH | oklch(41.94% 0.184 269.2) |
| XYZ | xyz(10.1742, 6.6731, 41.3009) |
| Luminance | 0.0667 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.10
Blue Blue
#2242C7
ΔE00 3.65
Ocean Blue
#4F42B5
ΔE00 5.16
Cobalt
#0047AB
ΔE00 5.60
Blueberry
#464196
ΔE00 5.61
Blue (survey)
#0343DF
ΔE00 6.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#283BAF #AF9C28
analogous
#287EAF #283BAF #5928AF
triadic
#283BAF #AF283B #3BAF28
tetradic
#283BAF #AF287E #AF9C28 #28AF59
square
#283BAF #AF287E #AF9C28 #28AF59
split-complementary
#283BAF #AF5928 #7EAF28
monochromatic
#11194B #1D2A7D #283BAF #4155D4 #7382DF
Accessibility & contrast
On white
8.99
#283BAF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.33
#283BAF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #283BAF
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##283BAF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##283BAF | 1.00 | 8.99 | 2.33 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.33 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050B3
Deuteranopia (green-blind)
#0043AD
Tritanopia (blue-blind)
#005A70
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #283baf; /* rgb */ color: rgb(40, 59, 175); /* oklch */ color: oklch(41.9% 0.184 269.2);
Tailwind
colors: {
custom: {
50: '#7871c8',
500: '#283baf',
950: '#000000',
},
}SCSS
$custom: #283baf; $custom-light: #7871c8; $custom-dark: #000000;
JSON
{
"hex": "#283baf",
"rgb": {
"r": 40,
"g": 59,
"b": 175
},
"hsl": {
"h": 231.556,
"s": 62.791,
"l": 42.157
},
"oklch": {
"l": 0.41939,
"c": 0.18421,
"h": 269.2
},
"luminance": 0.06674
}Semantic roles & 50–950 ramp
primary
#283BAF
secondary
#C6B96D
accent
#CF42E6
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0A0713
muted
#7C7A82