#28478D#28478D
#28478D is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.4% C 0.122 H 263.9°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).
Color values
| HEX | #28478D |
|---|---|
| RGB | rgb(40, 71, 141) |
| HSL | hsl(222, 56%, 35%) |
| HSV | hsv(222, 72%, 55%) |
| CMYK | cmyk(71.6%, 49.6%, 0%, 44.7%) |
| CIE-LAB | lab(31.53, 13.64, -42.29) |
| CIE-LCH | lch(31.53, 44.44, 287.88°) |
| OKLab | oklab(41.45% -0.013 -0.1213) |
| OKLCH | oklch(41.45% 0.122 263.9) |
| XYZ | xyz(7.9343, 6.8799, 26.1039) |
| Luminance | 0.0688 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.47
Darkish Blue
#014182
ΔE00 3.92
Cobalt
#0047AB
ΔE00 4.26
Twilight Blue
#0A437A
ΔE00 4.58
Dusk Blue
#26538D
ΔE00 4.71
Light Navy
#155084
ΔE00 5.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28478D #8D6E28
analogous
#28798D #28478D #3B288D
triadic
#28478D #8D2847 #478D28
tetradic
#28478D #8D2879 #8D6E28 #288D3B
square
#28478D #8D2879 #8D6E28 #288D3B
split-complementary
#28478D #8D3B28 #798D28
monochromatic
#0D172E #1A2F5D #28478D #365FBD #5E81D1
Accessibility & contrast
On white
8.84
#28478D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#28478D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28478D
8.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28478D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28478D | 1.00 | 8.84 | 2.38 | 8.84 |
| #FFFFFF | 8.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#214F90
Deuteranopia (green-blind)
#04468C
Tritanopia (blue-blind)
#005763
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #28478d; /* rgb */ color: rgb(40, 71, 141); /* oklch */ color: oklch(41.4% 0.122 263.9);
Tailwind
colors: {
custom: {
50: '#6f79af',
500: '#28478d',
950: '#000000',
},
}SCSS
$custom: #28478d; $custom-light: #6f79af; $custom-dark: #000000;
JSON
{
"hex": "#28478d",
"rgb": {
"r": 40,
"g": 71,
"b": 141
},
"hsl": {
"h": 221.584,
"s": 55.801,
"l": 35.49
},
"oklch": {
"l": 0.41446,
"c": 0.12199,
"h": 263.9
},
"luminance": 0.06881
}Semantic roles & 50–950 ramp
primary
#28478D
secondary
#B79A5A
accent
#B149DF
background
#F7F7FA
surface
#EDEDF4
border
#C8C8CE
text
#080910
muted
#7B7B7F