#2A28A8#2A28A8
#2A28A8 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.3% C 0.195 H 272.9°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).
Color values
| HEX | #2A28A8 |
|---|---|
| RGB | rgb(42, 40, 168) |
| HSL | hsl(241, 62%, 41%) |
| HSV | hsv(241, 76%, 66%) |
| CMYK | cmyk(75%, 76.2%, 0%, 34.1%) |
| CIE-LAB | lab(26.26, 43.85, -67.34) |
| CIE-LCH | lch(26.26, 80.36, 303.07°) |
| OKLab | oklab(38.31% 0.01 -0.1949) |
| OKLCH | oklch(38.31% 0.195 272.9) |
| XYZ | xyz(8.7792, 4.8361, 37.5090) |
| Luminance | 0.0484 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 3.68
Sapphire (survey)
#2138AB
ΔE00 4.57
Royal
#0C1793
ΔE00 5.06
Cobalt Blue
#030AA7
ΔE00 5.38
True Blue
#010FCC
ΔE00 5.44
Ultramarine
#2000B1
ΔE00 5.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A28A8 #A6A828
analogous
#2866A8 #2A28A8 #6A28A8
triadic
#2A28A8 #A82A28 #28A82A
tetradic
#2A28A8 #A82866 #A6A828 #28A86A
square
#2A28A8 #A82866 #A6A828 #28A86A
split-complementary
#2A28A8 #A86A28 #66A828
monochromatic
#111045 #1E1C77 #2A28A8 #3F3DD1 #706EDC
Accessibility & contrast
On white
10.67
#2A28A8 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.97
#2A28A8 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A28A8
10.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A28A8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A28A8 | 1.00 | 10.67 | 1.97 | 10.67 |
| #FFFFFF | 10.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0044AC
Deuteranopia (green-blind)
#0038A6
Tritanopia (blue-blind)
#004E66
Achromatopsia (no color)
#3E3E3E
Design tokens & code
CSS
--color: #2a28a8; /* rgb */ color: rgb(42, 40, 168); /* oklch */ color: oklch(38.3% 0.195 272.9);
Tailwind
colors: {
custom: {
50: '#7964c3',
500: '#2a28a8',
950: '#000000',
},
}SCSS
$custom: #2a28a8; $custom-light: #7964c3; $custom-dark: #000000;
JSON
{
"hex": "#2a28a8",
"rgb": {
"r": 42,
"g": 40,
"b": 168
},
"hsl": {
"h": 240.938,
"s": 61.538,
"l": 40.784
},
"oklch": {
"l": 0.38312,
"c": 0.19511,
"h": 272.9
},
"luminance": 0.04837
}Semantic roles & 50–950 ramp
primary
#2A28A8
secondary
#C2C369
accent
#E543E2
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0513
muted
#7C7A82