#5151D7#5151D7
#5151D7 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.7% C 0.200 H 276.8°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #5151D7 |
|---|---|
| RGB | rgb(81, 81, 215) |
| HSL | hsl(240, 63%, 58%) |
| HSV | hsv(240, 62%, 84%) |
| CMYK | cmyk(62.3%, 62.3%, 0%, 15.7%) |
| CIE-LAB | lab(42.06, 40.01, -68.92) |
| CIE-LCH | lch(42.06, 79.69, 300.14°) |
| OKLab | oklab(51.69% 0.0237 -0.1985) |
| OKLCH | oklch(51.69% 0.2 276.8) |
| XYZ | xyz(18.5975, 12.5390, 65.7170) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.16
Iris
#6258C4
ΔE00 4.03
Slate Blue
#6A5ACD
ΔE00 4.65
Dark Periwinkle
#665FD1
ΔE00 4.99
Light Indigo
#6D5ACF
ΔE00 5.02
Purpleish Blue
#6140EF
ΔE00 5.51
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5151D7 #D7D751
analogous
#5194D7 #5151D7 #9451D7
triadic
#5151D7 #D75151 #51D751
tetradic
#5151D7 #D75194 #D7D751 #51D794
square
#5151D7 #D75194 #D7D751 #51D794
split-complementary
#5151D7 #D79451 #94D751
monochromatic
#20208D #2C2CBF #5151D7 #8383E2 #B5B5EE
Accessibility & contrast
On white
5.99
#5151D7 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#5151D7 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5151D7
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5151D7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5151D7 | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0069DB
Deuteranopia (green-blind)
#005DD4
Tritanopia (blue-blind)
#00738C
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #5151d7; /* rgb */ color: rgb(81, 81, 215); /* oklch */ color: oklch(51.7% 0.200 276.8);
Tailwind
colors: {
custom: {
50: '#9082e4',
500: '#5151d7',
950: '#000000',
},
}SCSS
$custom: #5151d7; $custom-light: #9082e4; $custom-dark: #000000;
JSON
{
"hex": "#5151d7",
"rgb": {
"r": 81,
"g": 81,
"b": 215
},
"hsl": {
"h": 240,
"s": 62.617,
"l": 58.039
},
"oklch": {
"l": 0.51691,
"c": 0.1999,
"h": 276.8
},
"luminance": 0.1254
}Semantic roles & 50–950 ramp
primary
#5151D7
secondary
#DDDDA7
accent
#E642E6
background
#F9F8FE
surface
#F2EFFC
border
#CCCAD5
text
#0E0A16
muted
#7E7C84