#28318D#28318D
#28318D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.151 H 272.3°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).
Color values
| HEX | #28318D |
|---|---|
| RGB | rgb(40, 49, 141) |
| HSL | hsl(235, 56%, 35%) |
| HSV | hsv(235, 72%, 55%) |
| CMYK | cmyk(71.6%, 65.2%, 0%, 44.7%) |
| CIE-LAB | lab(25.47, 28.59, -52.13) |
| CIE-LCH | lch(25.47, 59.45, 298.75°) |
| OKLab | oklab(36.9% 0.006 -0.1505) |
| OKLCH | oklch(36.9% 0.151 272.3) |
| XYZ | xyz(6.7795, 4.5702, 25.7190) |
| Luminance | 0.0457 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 4.59
Blueberry
#464196
ΔE00 5.76
Darkslateblue
#483D8B
ΔE00 5.78
Royal
#0C1793
ΔE00 6.80
Midnight Blue
#191970
ΔE00 7.29
Indigo Blue
#3A18B1
ΔE00 8.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28318D #8D8428
analogous
#28648D #28318D #51288D
triadic
#28318D #8D2831 #318D28
tetradic
#28318D #8D2864 #8D8428 #288D51
square
#28318D #8D2864 #8D8428 #288D51
split-complementary
#28318D #8D5128 #648D28
monochromatic
#0D102E #1A205D #28318D #3642BD #5E68D1
Accessibility & contrast
On white
10.97
#28318D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#28318D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28318D
10.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28318D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28318D | 1.00 | 10.97 | 1.91 | 10.97 |
| #FFFFFF | 10.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004190
Deuteranopia (green-blind)
#00388B
Tritanopia (blue-blind)
#00495A
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #28318d; /* rgb */ color: rgb(40, 49, 141); /* oklch */ color: oklch(36.9% 0.151 272.3);
Tailwind
colors: {
custom: {
50: '#7169af',
500: '#28318d',
950: '#000000',
},
}SCSS
$custom: #28318d; $custom-light: #7169af; $custom-dark: #000000;
JSON
{
"hex": "#28318d",
"rgb": {
"r": 40,
"g": 49,
"b": 141
},
"hsl": {
"h": 234.653,
"s": 55.801,
"l": 35.49
},
"oklch": {
"l": 0.36902,
"c": 0.15063,
"h": 272.3
},
"luminance": 0.04571
}Semantic roles & 50–950 ramp
primary
#28318D
secondary
#B7AE5A
accent
#D249DF
background
#F7F6FA
surface
#EDEBF5
border
#C8C6CF
text
#090610
muted
#7B7A7F