#2837AD#2837AD
#2837AD is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.1% C 0.186 H 269.9°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).
Color values
| HEX | #2837AD |
|---|---|
| RGB | rgb(40, 55, 173) |
| HSL | hsl(233, 62%, 42%) |
| HSV | hsv(233, 77%, 68%) |
| CMYK | cmyk(76.9%, 68.2%, 0%, 32.2%) |
| CIE-LAB | lab(29.91, 36.42, -64.33) |
| CIE-LCH | lch(29.91, 73.93, 299.52°) |
| OKLab | oklab(41.05% -0.0003 -0.1862) |
| OKLCH | oklch(41.05% 0.186 269.9) |
| XYZ | xyz(9.7815, 6.1996, 40.2082) |
| Luminance | 0.0620 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 0.89
Blue Blue
#2242C7
ΔE00 4.54
Ocean Blue
#4F42B5
ΔE00 5.49
Blueberry
#464196
ΔE00 5.81
Blue With A Hint Of Purple
#533CC6
ΔE00 6.58
Cobalt
#0047AB
ΔE00 6.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2837AD #AD9E28
analogous
#287AAD #2837AD #5C28AD
triadic
#2837AD #AD2837 #37AD28
tetradic
#2837AD #AD287A #AD9E28 #28AD5C
square
#2837AD #AD287A #AD9E28 #28AD5C
split-complementary
#2837AD #AD5C28 #7AAD28
monochromatic
#11174A #1D277B #2837AD #3F50D3 #717DDE
Accessibility & contrast
On white
9.37
#2837AD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.24
#2837AD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2837AD
9.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2837AD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2837AD | 1.00 | 9.37 | 2.24 | 9.37 |
| #FFFFFF | 9.37 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.37 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004DB1
Deuteranopia (green-blind)
#0040AB
Tritanopia (blue-blind)
#00576D
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #2837ad; /* rgb */ color: rgb(40, 55, 173); /* oklch */ color: oklch(41.1% 0.186 269.9);
Tailwind
colors: {
custom: {
50: '#786ec7',
500: '#2837ad',
950: '#000000',
},
}SCSS
$custom: #2837ad; $custom-light: #786ec7; $custom-dark: #000000;
JSON
{
"hex": "#2837ad",
"rgb": {
"r": 40,
"g": 55,
"b": 173
},
"hsl": {
"h": 233.233,
"s": 62.441,
"l": 41.765
},
"oklch": {
"l": 0.41051,
"c": 0.18619,
"h": 269.9
},
"luminance": 0.06201
}Semantic roles & 50–950 ramp
primary
#2837AD
secondary
#C5BB6C
accent
#D342E6
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0A0713
muted
#7C7A82