#515FB2#515FB2

#515FB2 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.6% C 0.131 H 273.7°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#515FB2
RGB	rgb(81, 95, 178)
HSL	hsl(231, 39%, 51%)
HSV	hsv(231, 54%, 70%)
CMYK	cmyk(54.5%, 46.6%, 0%, 30.2%)
CIE-LAB	lab(42.98, 19.04, -45.98)
CIE-LCH	lch(42.98, 49.76, 292.50°)
OKLab	oklab(51.57% 0.0085 -0.1309)
OKLCH	oklch(51.57% 0.131 273.7)
XYZ	xyz(15.5188, 13.1470, 43.8307)
Luminance	0.1315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FB2 #B2A451

analogous

#518FB2 #515FB2 #7351B2

triadic

#515FB2 #B2515F #5FB251

tetradic

#515FB2 #B2518F #B2A451 #51B273

square

#515FB2 #B2518F #B2A451 #51B273

split-complementary

#515FB2 #B27351 #8FB251

monochromatic

#2A325F #3D4889 #515FB2 #7B86C5 #A6ADD8

Accessibility & contrast

On white

5.79

#515FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#515FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FB2

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FB2	#FFFFFF	#000000	##FFFFFF
##515FB2	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6AB5

Deuteranopia (green-blind)

#2E62B0

Tritanopia (blue-blind)

#217180

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515fb2;
/* rgb */ color: rgb(81, 95, 178);
/* oklch */ color: oklch(51.6% 0.131 273.7);

Tailwind

colors: {
  custom: {
    50: '#898cc9',
    500: '#515fb2',
    950: '#000000',
  },
}

SCSS

$custom: #515fb2;
$custom-light: #898cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#515fb2",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 178
  },
  "hsl": {
    "h": 231.34,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51565,
    "c": 0.1312,
    "h": 273.7
  },
  "luminance": 0.13148
}

Semantic roles & 50–950 ramp

primary

#515FB2

secondary

#C5BF9A

accent

#BE59CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #515FB2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →