#284AAD#284AAD
#284AAD is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.163 H 265.7°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).
Color values
| HEX | #284AAD |
|---|---|
| RGB | rgb(40, 74, 173) |
| HSL | hsl(225, 62%, 42%) |
| HSV | hsv(225, 77%, 68%) |
| CMYK | cmyk(76.9%, 57.2%, 0%, 32.2%) |
| CIE-LAB | lab(34.73, 23.99, -56.45) |
| CIE-LCH | lch(34.73, 61.33, 293.02°) |
| OKLab | oklab(44.62% -0.0124 -0.1629) |
| OKLCH | oklch(44.62% 0.163 265.7) |
| XYZ | xyz(10.8640, 8.3646, 40.5690) |
| Luminance | 0.0837 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.39
Sapphire
#0F52BA
ΔE00 3.65
Blue Blue
#2242C7
ΔE00 4.60
Cobalt (survey)
#1E488F
ΔE00 4.71
Sapphire (survey)
#2138AB
ΔE00 5.63
Dusk Blue
#26538D
ΔE00 6.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#284AAD #AD8B28
analogous
#288DAD #284AAD #4928AD
triadic
#284AAD #AD284A #4AAD28
tetradic
#284AAD #AD288D #AD8B28 #28AD49
square
#284AAD #AD288D #AD8B28 #28AD49
split-complementary
#284AAD #AD4928 #8DAD28
monochromatic
#111F4A #1D357B #284AAD #3F65D3 #718DDE
Accessibility & contrast
On white
7.86
#284AAD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.67
#284AAD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #284AAD
7.86:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##284AAD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##284AAD | 1.00 | 7.86 | 2.67 | 7.86 |
| #FFFFFF | 7.86 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.67 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.86 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0058B0
Deuteranopia (green-blind)
#004CAB
Tritanopia (blue-blind)
#006374
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #284aad; /* rgb */ color: rgb(40, 74, 173); /* oklch */ color: oklch(44.6% 0.163 265.7);
Tailwind
colors: {
custom: {
50: '#767cc6',
500: '#284aad',
950: '#000000',
},
}SCSS
$custom: #284aad; $custom-light: #767cc6; $custom-dark: #000000;
JSON
{
"hex": "#284aad",
"rgb": {
"r": 40,
"g": 74,
"b": 173
},
"hsl": {
"h": 224.662,
"s": 62.441,
"l": 41.765
},
"oklch": {
"l": 0.44616,
"c": 0.16336,
"h": 265.7
},
"luminance": 0.08366
}Semantic roles & 50–950 ramp
primary
#284AAD
secondary
#C5AE6C
accent
#BC42E6
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82