#2A23B0#2A23B0
#2A23B0 is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.6% C 0.209 H 272.8°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).
Color values
| HEX | #2A23B0 |
|---|---|
| RGB | rgb(42, 35, 176) |
| HSL | hsl(243, 67%, 41%) |
| HSV | hsv(243, 80%, 69%) |
| CMYK | cmyk(76.1%, 80.1%, 0%, 31%) |
| CIE-LAB | lab(26.24, 49.08, -72.19) |
| CIE-LCH | lch(26.24, 87.29, 304.21°) |
| OKLab | oklab(38.56% 0.0101 -0.2089) |
| OKLCH | oklch(38.56% 0.209 272.8) |
| XYZ | xyz(9.3897, 4.8279, 41.5029) |
| Luminance | 0.0483 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 2.47
True Blue
#010FCC
ΔE00 4.02
Ultramarine
#2000B1
ΔE00 4.49
Cobalt Blue
#030AA7
ΔE00 4.65
Mediumblue
#0000CD
ΔE00 4.78
Royal Blue (survey)
#0504AA
ΔE00 4.93
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A23B0 #A9B023
analogous
#2363B0 #2A23B0 #7123B0
triadic
#2A23B0 #B02A23 #23B02A
tetradic
#2A23B0 #B02363 #A9B023 #23B071
square
#2A23B0 #B02363 #A9B023 #23B071
split-complementary
#2A23B0 #B07123 #63B023
monochromatic
#120F4A #1E197D #2A23B0 #4139D8 #726CE2
Accessibility & contrast
On white
10.68
#2A23B0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.97
#2A23B0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A23B0
10.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A23B0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A23B0 | 1.00 | 10.68 | 1.97 | 10.68 |
| #FFFFFF | 10.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0045B4
Deuteranopia (green-blind)
#0037AE
Tritanopia (blue-blind)
#004F6A
Achromatopsia (no color)
#3E3E3E
Design tokens & code
CSS
--color: #2a23b0; /* rgb */ color: rgb(42, 35, 176); /* oklch */ color: oklch(38.6% 0.209 272.8);
Tailwind
colors: {
custom: {
50: '#7b62c9',
500: '#2a23b0',
950: '#000000',
},
}SCSS
$custom: #2a23b0; $custom-light: #7b62c9; $custom-dark: #000000;
JSON
{
"hex": "#2a23b0",
"rgb": {
"r": 42,
"g": 35,
"b": 176
},
"hsl": {
"h": 242.979,
"s": 66.825,
"l": 41.373
},
"oklch": {
"l": 0.38558,
"c": 0.20913,
"h": 272.8
},
"luminance": 0.04829
}Semantic roles & 50–950 ramp
primary
#2A23B0
secondary
#C3C867
accent
#EA3EE1
background
#F8F5FC
surface
#EFEAF8
border
#CAC6D1
text
#0B0513
muted
#7C7982