#515DBD#515DBD
#515DBD is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.9% C 0.150 H 274.6°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).
Color values
| HEX | #515DBD |
|---|---|
| RGB | rgb(81, 93, 189) |
| HSL | hsl(233, 45%, 53%) |
| HSV | hsv(233, 57%, 74%) |
| CMYK | cmyk(57.1%, 50.8%, 0%, 25.9%) |
| CIE-LAB | lab(43.14, 23.96, -52.15) |
| CIE-LCH | lch(43.14, 57.39, 294.67°) |
| OKLab | oklab(51.9% 0.012 -0.1491) |
| OKLCH | oklch(51.9% 0.15 274.6) |
| XYZ | xyz(16.4900, 13.2510, 49.8230) |
| Luminance | 0.1325 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Iris
#6258C4
ΔE00 4.13
Warm Blue
#4B57DB
ΔE00 4.52
Dark Periwinkle
#665FD1
ΔE00 4.83
Slate Blue
#6A5ACD
ΔE00 5.55
Light Indigo
#6D5ACF
ΔE00 6.15
Dusky Blue
#475F94
ΔE00 6.55
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#515DBD #BDB151
analogous
#5193BD #515DBD #7B51BD
triadic
#515DBD #BD515D #5DBD51
tetradic
#515DBD #BD5193 #BDB151 #51BD7B
square
#515DBD #BD5193 #BDB151 #51BD7B
split-complementary
#515DBD #BD7B51 #93BD51
monochromatic
#29306B #394497 #515DBD #7D86CE #AAB0DF
Accessibility & contrast
On white
5.75
#515DBD on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.65
#515DBD on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #515DBD
5.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##515DBD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##515DBD | 1.00 | 5.75 | 3.65 | 5.75 |
| #FFFFFF | 5.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2A6BC0
Deuteranopia (green-blind)
#1761BB
Tritanopia (blue-blind)
#0D7384
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #515dbd; /* rgb */ color: rgb(81, 93, 189); /* oklch */ color: oklch(51.9% 0.150 274.6);
Tailwind
colors: {
custom: {
50: '#8b8ad1',
500: '#515dbd',
950: '#000000',
},
}SCSS
$custom: #515dbd; $custom-light: #8b8ad1; $custom-dark: #000000;
JSON
{
"hex": "#515dbd",
"rgb": {
"r": 81,
"g": 93,
"b": 189
},
"hsl": {
"h": 233.333,
"s": 45,
"l": 52.941
},
"oklch": {
"l": 0.51903,
"c": 0.14958,
"h": 274.6
},
"luminance": 0.13252
}Semantic roles & 50–950 ramp
primary
#515DBD
secondary
#CCC79E
accent
#C653D5
background
#F8F8FC
surface
#F0F0F9
border
#CBCBD2
text
#0D0B14
muted
#7D7C82