#515FCC#515FCC

#515FCC is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.4% C 0.168 H 273.8°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#515FCC
RGB	rgb(81, 95, 204)
HSL	hsl(233, 55%, 56%)
HSV	hsv(233, 60%, 80%)
CMYK	cmyk(60.3%, 53.4%, 0%, 20%)
CIE-LAB	lab(44.65, 27.73, -58.40)
CIE-LCH	lch(44.65, 64.65, 295.40°)
OKLab	oklab(53.36% 0.0111 -0.1674)
OKLCH	oklch(53.36% 0.168 273.8)
XYZ	xyz(18.3810, 14.2919, 58.9050)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FCC #CCBE51

analogous

#519CCC #515FCC #8051CC

triadic

#515FCC #CC515F #5FCC51

tetradic

#515FCC #CC519C #CCBE51 #51CC80

square

#515FCC #CC519C #CCBE51 #51CC80

split-complementary

#515FCC #CC8051 #9CCC51

monochromatic

#252F7E #3341AD #515FCC #808BDA #B0B6E8

Accessibility & contrast

On white

5.44

#515FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#515FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FCC

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FCC	#FFFFFF	#000000	##FFFFFF
##515FCC	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#186FD0

Deuteranopia (green-blind)

#0064CA

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515fcc;
/* rgb */ color: rgb(81, 95, 204);
/* oklch */ color: oklch(53.4% 0.168 273.8);

Tailwind

colors: {
  custom: {
    50: '#8d8cdc',
    500: '#515fcc',
    950: '#000000',
  },
}

SCSS

$custom: #515fcc;
$custom-light: #8d8cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#515fcc",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 204
  },
  "hsl": {
    "h": 233.171,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.53356,
    "c": 0.16781,
    "h": 273.8
  },
  "luminance": 0.14293
}

Semantic roles & 50–950 ramp

primary

#515FCC

secondary

#D6D0A3

accent

#CD4ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515FCC

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

Preview Lab → · Contrast checker → · Palette generator →