#515BCA#515BCA
#515BCA is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.5% C 0.170 H 275.0°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #515BCA |
|---|---|
| RGB | rgb(81, 91, 202) |
| HSL | hsl(235, 53%, 55%) |
| HSV | hsv(235, 60%, 79%) |
| CMYK | cmyk(59.9%, 55%, 0%, 20.8%) |
| CIE-LAB | lab(43.50, 29.56, -59.11) |
| CIE-LCH | lch(43.50, 66.08, 296.57°) |
| OKLab | oklab(52.45% 0.0149 -0.1696) |
| OKLCH | oklch(52.45% 0.17 275) |
| XYZ | xyz(17.7916, 13.4944, 57.5328) |
| Luminance | 0.1350 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.55
Iris
#6258C4
ΔE00 3.46
Dark Periwinkle
#665FD1
ΔE00 3.80
Slate Blue
#6A5ACD
ΔE00 4.54
Light Indigo
#6D5ACF
ΔE00 5.11
Azul
#1D5DEC
ΔE00 5.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#515BCA #CAC051
analogous
#5198CA #515BCA #8351CA
triadic
#515BCA #CA515B #5BCA51
tetradic
#515BCA #CA5198 #CAC051 #51CA83
square
#515BCA #CA5198 #CAC051 #51CA83
split-complementary
#515BCA #CA8351 #98CA51
monochromatic
#252D7B #343EAA #515BCA #8087D8 #AFB3E7
Accessibility & contrast
On white
5.68
#515BCA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.70
#515BCA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #515BCA
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##515BCA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##515BCA | 1.00 | 5.68 | 3.70 | 5.68 |
| #FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#056CCE
Deuteranopia (green-blind)
#0062C8
Tritanopia (blue-blind)
#00758A
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #515bca; /* rgb */ color: rgb(81, 91, 202); /* oklch */ color: oklch(52.5% 0.170 275.0);
Tailwind
colors: {
custom: {
50: '#8d89db',
500: '#515bca',
950: '#000000',
},
}SCSS
$custom: #515bca; $custom-light: #8d89db; $custom-dark: #000000;
JSON
{
"hex": "#515bca",
"rgb": {
"r": 81,
"g": 91,
"b": 202
},
"hsl": {
"h": 235.041,
"s": 53.304,
"l": 55.49
},
"oklch": {
"l": 0.52451,
"c": 0.17022,
"h": 275
},
"luminance": 0.13496
}Semantic roles & 50–950 ramp
primary
#515BCA
secondary
#D5D0A2
accent
#D14BDD
background
#F9F8FD
surface
#F1F0FB
border
#CBCBD4
text
#0D0B15
muted
#7E7C83