#2A31A6#2A31A6
#2A31A6 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.183 H 271.8°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).
Color values
| HEX | #2A31A6 |
|---|---|
| RGB | rgb(42, 49, 166) |
| HSL | hsl(237, 60%, 41%) |
| HSV | hsv(237, 75%, 65%) |
| CMYK | cmyk(74.7%, 70.5%, 0%, 34.9%) |
| CIE-LAB | lab(27.96, 37.87, -63.34) |
| CIE-LCH | lch(27.96, 73.79, 300.88°) |
| OKLab | oklab(39.46% 0.0058 -0.1832) |
| OKLCH | oklch(39.46% 0.183 271.8) |
| XYZ | xyz(8.9338, 5.4411, 36.6484) |
| Luminance | 0.0544 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.37
Indigo Blue
#3A18B1
ΔE00 5.85
Blueberry
#464196
ΔE00 6.16
Blue Blue
#2242C7
ΔE00 6.34
Ocean Blue
#4F42B5
ΔE00 6.43
Royal
#0C1793
ΔE00 6.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A31A6 #A69F2A
analogous
#2A6FA6 #2A31A6 #612AA6
triadic
#2A31A6 #A62A31 #31A62A
tetradic
#2A31A6 #A62A6F #A69F2A #2AA661
square
#2A31A6 #A62A6F #A69F2A #2AA661
split-complementary
#2A31A6 #A6612A #6FA62A
monochromatic
#111444 #1E2375 #2A31A6 #3F47CE #7076DB
Accessibility & contrast
On white
10.06
#2A31A6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.09
#2A31A6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A31A6
10.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A31A6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A31A6 | 1.00 | 10.06 | 2.09 | 10.06 |
| #FFFFFF | 10.06 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.09 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.06 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0048AA
Deuteranopia (green-blind)
#003CA4
Tritanopia (blue-blind)
#005168
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #2a31a6; /* rgb */ color: rgb(42, 49, 166); /* oklch */ color: oklch(39.5% 0.183 271.8);
Tailwind
colors: {
custom: {
50: '#776ac2',
500: '#2a31a6',
950: '#000000',
},
}SCSS
$custom: #2a31a6; $custom-light: #776ac2; $custom-dark: #000000;
JSON
{
"hex": "#2a31a6",
"rgb": {
"r": 42,
"g": 49,
"b": 166
},
"hsl": {
"h": 236.613,
"s": 59.615,
"l": 40.784
},
"oklch": {
"l": 0.39459,
"c": 0.18334,
"h": 271.8
},
"luminance": 0.05442
}Semantic roles & 50–950 ramp
primary
#2A31A6
secondary
#C2BD6A
accent
#DA45E3
background
#F7F6FC
surface
#EEEBF8
border
#C9C6D1
text
#0A0612
muted
#7C7A81