#515FC9#515FC9

#515FC9 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.1% C 0.164 H 273.8°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#515FC9
RGB	rgb(81, 95, 201)
HSL	hsl(233, 53%, 55%)
HSV	hsv(233, 60%, 79%)
CMYK	cmyk(59.7%, 52.7%, 0%, 21.2%)
CIE-LAB	lab(44.45, 26.72, -57.00)
CIE-LCH	lch(44.45, 62.95, 295.12°)
OKLab	oklab(53.14% 0.0109 -0.1633)
OKLCH	oklch(53.14% 0.164 273.8)
XYZ	xyz(18.0247, 14.1494, 57.0283)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FC9 #C9BB51

analogous

#519BC9 #515FC9 #7F51C9

triadic

#515FC9 #C9515F #5FC951

tetradic

#515FC9 #C9519B #C9BB51 #51C97F

square

#515FC9 #C9519B #C9BB51 #51C97F

split-complementary

#515FC9 #C97F51 #9BC951

monochromatic

#26307A #3442A9 #515FC9 #808AD7 #AEB5E6

Accessibility & contrast

On white

5.48

#515FC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#515FC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FC9

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FC9	#FFFFFF	#000000	##FFFFFF
##515FC9	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E6ECD

Deuteranopia (green-blind)

#0064C7

Tritanopia (blue-blind)

#00788B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515fc9;
/* rgb */ color: rgb(81, 95, 201);
/* oklch */ color: oklch(53.1% 0.164 273.8);

Tailwind

colors: {
  custom: {
    50: '#8d8cda',
    500: '#515fc9',
    950: '#000000',
  },
}

SCSS

$custom: #515fc9;
$custom-light: #8d8cda;
$custom-dark: #000000;

JSON

{
  "hex": "#515fc9",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 201
  },
  "hsl": {
    "h": 233,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.5314,
    "c": 0.16369,
    "h": 273.8
  },
  "luminance": 0.14151
}

Semantic roles & 50–950 ramp

primary

#515FC9

secondary

#D4CEA2

accent

#CB4CDC

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515FC9

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

Preview Lab → · Contrast checker → · Palette generator →