#284AAF#284AAF
#284AAF is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.8% C 0.166 H 265.8°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).
Color values
| HEX | #284AAF |
|---|---|
| RGB | rgb(40, 74, 175) |
| HSL | hsl(225, 63%, 42%) |
| HSV | hsv(225, 77%, 69%) |
| CMYK | cmyk(77.1%, 57.7%, 0%, 31.4%) |
| CIE-LAB | lab(34.89, 24.75, -57.38) |
| CIE-LCH | lch(34.89, 62.49, 293.33°) |
| OKLab | oklab(44.78% -0.0123 -0.1656) |
| OKLCH | oklch(44.78% 0.166 265.8) |
| XYZ | xyz(11.0590, 8.4426, 41.5959) |
| Luminance | 0.0844 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.52
Sapphire
#0F52BA
ΔE00 3.61
Blue Blue
#2242C7
ΔE00 4.34
Cobalt (survey)
#1E488F
ΔE00 4.98
Sapphire (survey)
#2138AB
ΔE00 5.59
Dusk Blue
#26538D
ΔE00 6.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#284AAF #AF8D28
analogous
#288EAF #284AAF #4A28AF
triadic
#284AAF #AF284A #4AAF28
tetradic
#284AAF #AF288E #AF8D28 #28AF4A
square
#284AAF #AF288E #AF8D28 #28AF4A
split-complementary
#284AAF #AF4A28 #8EAF28
monochromatic
#11204B #1D357D #284AAF #4166D4 #738EDF
Accessibility & contrast
On white
7.81
#284AAF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.69
#284AAF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #284AAF
7.81:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##284AAF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##284AAF | 1.00 | 7.81 | 2.69 | 7.81 |
| #FFFFFF | 7.81 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.69 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.81 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0059B2
Deuteranopia (green-blind)
#004CAD
Tritanopia (blue-blind)
#006375
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #284aaf; /* rgb */ color: rgb(40, 74, 175); /* oklch */ color: oklch(44.8% 0.166 265.8);
Tailwind
colors: {
custom: {
50: '#777cc8',
500: '#284aaf',
950: '#000000',
},
}SCSS
$custom: #284aaf; $custom-light: #777cc8; $custom-dark: #000000;
JSON
{
"hex": "#284aaf",
"rgb": {
"r": 40,
"g": 74,
"b": 175
},
"hsl": {
"h": 224.889,
"s": 62.791,
"l": 42.157
},
"oklch": {
"l": 0.44783,
"c": 0.16608,
"h": 265.8
},
"luminance": 0.08444
}Semantic roles & 50–950 ramp
primary
#284AAF
secondary
#C6B06D
accent
#BD42E6
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82