#284BAE#284BAE
#284BAE is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.163 H 265.4°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).
Color values
| HEX | #284BAE |
|---|---|
| RGB | rgb(40, 75, 174) |
| HSL | hsl(224, 63%, 42%) |
| HSV | hsv(224, 77%, 68%) |
| CMYK | cmyk(77%, 56.9%, 0%, 31.8%) |
| CIE-LAB | lab(35.08, 23.70, -56.48) |
| CIE-LCH | lch(35.08, 61.25, 292.77°) |
| OKLab | oklab(44.9% -0.013 -0.163) |
| OKLCH | oklch(44.9% 0.163 265.4) |
| XYZ | xyz(11.0284, 8.5380, 41.1030) |
| Luminance | 0.0854 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.46
Sapphire
#0F52BA
ΔE00 3.33
Blue Blue
#2242C7
ΔE00 4.70
Cobalt (survey)
#1E488F
ΔE00 4.78
Sapphire (survey)
#2138AB
ΔE00 5.95
Dusk Blue
#26538D
ΔE00 6.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#284BAE #AE8B28
analogous
#288EAE #284BAE #4828AE
triadic
#284BAE #AE284B #4BAE28
tetradic
#284BAE #AE288E #AE8B28 #28AE48
square
#284BAE #AE288E #AE8B28 #28AE48
split-complementary
#284BAE #AE4828 #8EAE28
monochromatic
#11204A #1D367C #284BAE #4066D3 #728EDF
Accessibility & contrast
On white
7.76
#284BAE on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.71
#284BAE on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #284BAE
7.76:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##284BAE | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##284BAE | 1.00 | 7.76 | 2.71 | 7.76 |
| #FFFFFF | 7.76 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.71 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.76 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0059B1
Deuteranopia (green-blind)
#004DAC
Tritanopia (blue-blind)
#006475
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #284bae; /* rgb */ color: rgb(40, 75, 174); /* oklch */ color: oklch(44.9% 0.163 265.4);
Tailwind
colors: {
custom: {
50: '#767cc7',
500: '#284bae',
950: '#000000',
},
}SCSS
$custom: #284bae; $custom-light: #767cc7; $custom-dark: #000000;
JSON
{
"hex": "#284bae",
"rgb": {
"r": 40,
"g": 75,
"b": 174
},
"hsl": {
"h": 224.328,
"s": 62.617,
"l": 41.961
},
"oklch": {
"l": 0.44902,
"c": 0.16348,
"h": 265.4
},
"luminance": 0.08539
}Semantic roles & 50–950 ramp
primary
#284BAE
secondary
#C6AE6C
accent
#BB42E6
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82