#2A28AB#2A28AB
#2A28AB is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.6% C 0.199 H 272.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #2A28AB |
|---|---|
| RGB | rgb(42, 40, 171) |
| HSL | hsl(241, 62%, 41%) |
| HSV | hsv(241, 77%, 67%) |
| CMYK | cmyk(75.4%, 76.6%, 0%, 32.9%) |
| CIE-LAB | lab(26.59, 44.84, -68.60) |
| CIE-LCH | lch(26.59, 81.96, 303.17°) |
| OKLab | oklab(38.64% 0.0094 -0.1985) |
| OKLCH | oklch(38.64% 0.199 272.7) |
| XYZ | xyz(9.0619, 4.9491, 38.9979) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 3.53
Sapphire (survey)
#2138AB
ΔE00 4.56
True Blue
#010FCC
ΔE00 5.14
Royal
#0C1793
ΔE00 5.32
Cobalt Blue
#030AA7
ΔE00 5.43
Ultramarine
#2000B1
ΔE00 5.57
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A28AB #A9AB28
analogous
#2868AB #2A28AB #6C28AB
triadic
#2A28AB #AB2A28 #28AB2A
tetradic
#2A28AB #AB2868 #A9AB28 #28AB6C
square
#2A28AB #AB2868 #A9AB28 #28AB6C
split-complementary
#2A28AB #AB6C28 #68AB28
monochromatic
#121148 #1E1C79 #2A28AB #413ED2 #7270DE
Accessibility & contrast
On white
10.55
#2A28AB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#2A28AB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A28AB
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A28AB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A28AB | 1.00 | 10.55 | 1.99 | 10.55 |
| #FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0045AF
Deuteranopia (green-blind)
#0038A9
Tritanopia (blue-blind)
#004F68
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #2a28ab; /* rgb */ color: rgb(42, 40, 171); /* oklch */ color: oklch(38.6% 0.199 272.7);
Tailwind
colors: {
custom: {
50: '#7964c5',
500: '#2a28ab',
950: '#000000',
},
}SCSS
$custom: #2a28ab; $custom-light: #7964c5; $custom-dark: #000000;
JSON
{
"hex": "#2a28ab",
"rgb": {
"r": 42,
"g": 40,
"b": 171
},
"hsl": {
"h": 240.916,
"s": 62.085,
"l": 41.373
},
"oklch": {
"l": 0.3864,
"c": 0.19876,
"h": 272.7
},
"luminance": 0.0495
}Semantic roles & 50–950 ramp
primary
#2A28AB
secondary
#C3C46A
accent
#E543E3
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0513
muted
#7C7A82