#2A23AA#2A23AA
#2A23AA is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 37.9% C 0.202 H 273.3°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).
Color values
| HEX | #2A23AA |
|---|---|
| RGB | rgb(42, 35, 170) |
| HSL | hsl(243, 66%, 40%) |
| HSV | hsv(243, 79%, 67%) |
| CMYK | cmyk(75.3%, 79.4%, 0%, 33.3%) |
| CIE-LAB | lab(25.55, 47.18, -69.72) |
| CIE-LCH | lch(25.55, 84.18, 304.09°) |
| OKLab | oklab(37.88% 0.0115 -0.2017) |
| OKLCH | oklch(37.88% 0.202 273.3) |
| XYZ | xyz(8.8092, 4.5957, 38.4452) |
| Luminance | 0.0460 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 2.70
Cobalt Blue
#030AA7
ΔE00 4.41
Ultramarine
#2000B1
ΔE00 4.51
Royal
#0C1793
ΔE00 4.60
True Blue
#010FCC
ΔE00 4.63
Royal Blue (survey)
#0504AA
ΔE00 4.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A23AA #A3AA23
analogous
#2360AA #2A23AA #6D23AA
triadic
#2A23AA #AA2A23 #23AA2A
tetradic
#2A23AA #AA2360 #A3AA23 #23AA6D
square
#2A23AA #AA2360 #A3AA23 #23AA6D
split-complementary
#2A23AA #AA6D23 #60AA23
monochromatic
#110E44 #1D1977 #2A23AA #3D35D5 #6E68E0
Accessibility & contrast
On white
10.94
#2A23AA on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.92
#2A23AA on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A23AA
10.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A23AA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A23AA | 1.00 | 10.94 | 1.92 | 10.94 |
| #FFFFFF | 10.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0043AE
Deuteranopia (green-blind)
#0036A8
Tritanopia (blue-blind)
#004C66
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #2a23aa; /* rgb */ color: rgb(42, 35, 170); /* oklch */ color: oklch(37.9% 0.202 273.3);
Tailwind
colors: {
custom: {
50: '#7a61c5',
500: '#2a23aa',
950: '#000000',
},
}SCSS
$custom: #2a23aa; $custom-light: #7a61c5; $custom-dark: #000000;
JSON
{
"hex": "#2a23aa",
"rgb": {
"r": 42,
"g": 35,
"b": 170
},
"hsl": {
"h": 243.111,
"s": 65.854,
"l": 40.196
},
"oklch": {
"l": 0.37877,
"c": 0.20205,
"h": 273.3
},
"luminance": 0.04597
}Semantic roles & 50–950 ramp
primary
#2A23AA
secondary
#C0C663
accent
#E93FE0
background
#F8F5FC
surface
#EFEAF8
border
#CAC6D1
text
#0B0513
muted
#7C7982