#284CAF#284CAF
#284CAF is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.2% C 0.164 H 265.2°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).
Color values
| HEX | #284CAF |
|---|---|
| RGB | rgb(40, 76, 175) |
| HSL | hsl(224, 63%, 42%) |
| HSV | hsv(224, 77%, 69%) |
| CMYK | cmyk(77.1%, 56.6%, 0%, 31.4%) |
| CIE-LAB | lab(35.43, 23.42, -56.50) |
| CIE-LCH | lch(35.43, 61.17, 292.51°) |
| OKLab | oklab(45.19% -0.0137 -0.163) |
| OKLCH | oklch(45.19% 0.164 265.2) |
| XYZ | xyz(11.1946, 8.7139, 41.6411) |
| Luminance | 0.0872 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.58
Sapphire
#0F52BA
ΔE00 3.03
Blue Blue
#2242C7
ΔE00 4.83
Cobalt (survey)
#1E488F
ΔE00 4.87
Dusk Blue
#26538D
ΔE00 5.95
Sapphire (survey)
#2138AB
ΔE00 6.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#284CAF #AF8B28
analogous
#2890AF #284CAF #4828AF
triadic
#284CAF #AF284C #4CAF28
tetradic
#284CAF #AF2890 #AF8B28 #28AF48
square
#284CAF #AF2890 #AF8B28 #28AF48
split-complementary
#284CAF #AF4828 #90AF28
monochromatic
#11214B #1D367D #284CAF #4168D4 #738FDF
Accessibility & contrast
On white
7.66
#284CAF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.74
#284CAF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #284CAF
7.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##284CAF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##284CAF | 1.00 | 7.66 | 2.74 | 7.66 |
| #FFFFFF | 7.66 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.74 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.66 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005AB2
Deuteranopia (green-blind)
#004DAD
Tritanopia (blue-blind)
#006576
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #284caf; /* rgb */ color: rgb(40, 76, 175); /* oklch */ color: oklch(45.2% 0.164 265.2);
Tailwind
colors: {
custom: {
50: '#777dc8',
500: '#284caf',
950: '#000000',
},
}SCSS
$custom: #284caf; $custom-light: #777dc8; $custom-dark: #000000;
JSON
{
"hex": "#284caf",
"rgb": {
"r": 40,
"g": 76,
"b": 175
},
"hsl": {
"h": 224,
"s": 62.791,
"l": 42.157
},
"oklch": {
"l": 0.45189,
"c": 0.1636,
"h": 265.2
},
"luminance": 0.08715
}Semantic roles & 50–950 ramp
primary
#284CAF
secondary
#C6AE6D
accent
#BA42E6
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82