#515FCB#515FCB

#515FCB is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.3% C 0.166 H 273.8°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#515FCB
RGB	rgb(81, 95, 203)
HSL	hsl(233, 54%, 56%)
HSV	hsv(233, 60%, 80%)
CMYK	cmyk(60.1%, 53.2%, 0%, 20.4%)
CIE-LAB	lab(44.58, 27.39, -57.93)
CIE-LCH	lch(44.58, 64.08, 295.31°)
OKLab	oklab(53.28% 0.011 -0.1661)
OKLCH	oklch(53.28% 0.166 273.8)
XYZ	xyz(18.2615, 14.2441, 58.2754)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FCB #CBBD51

analogous

#519CCB #515FCB #8051CB

triadic

#515FCB #CB515F #5FCB51

tetradic

#515FCB #CB519C #CBBD51 #51CB80

square

#515FCB #CB519C #CBBD51 #51CB80

split-complementary

#515FCB #CB8051 #9CCB51

monochromatic

#252F7C #3341AC #515FCB #808AD9 #AFB6E7

Accessibility & contrast

On white

5.46

#515FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#515FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FCB

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FCB	#FFFFFF	#000000	##FFFFFF
##515FCB	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A6FCF

Deuteranopia (green-blind)

#0064C9

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515fcb;
/* rgb */ color: rgb(81, 95, 203);
/* oklch */ color: oklch(53.3% 0.166 273.8);

Tailwind

colors: {
  custom: {
    50: '#8d8cdb',
    500: '#515fcb',
    950: '#000000',
  },
}

SCSS

$custom: #515fcb;
$custom-light: #8d8cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#515fcb",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 203
  },
  "hsl": {
    "h": 233.115,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.53284,
    "c": 0.16644,
    "h": 273.8
  },
  "luminance": 0.14246
}

Semantic roles & 50–950 ramp

primary

#515FCB

secondary

#D5CFA3

accent

#CC4ADD

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515FCB

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

Preview Lab → · Contrast checker → · Palette generator →