#515DC4#515DC4

#515DC4 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.4% C 0.159 H 274.5°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#515DC4
RGB	rgb(81, 93, 196)
HSL	hsl(234, 49%, 54%)
HSV	hsv(234, 59%, 77%)
CMYK	cmyk(58.7%, 52.6%, 0%, 23.1%)
CIE-LAB	lab(43.60, 26.30, -55.48)
CIE-LCH	lch(43.60, 61.39, 295.36°)
OKLab	oklab(52.4% 0.0125 -0.1589)
OKLCH	oklch(52.4% 0.159 274.5)
XYZ	xyz(17.2682, 13.5623, 53.9217)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DC4 #C4B851

analogous

#5197C4 #515DC4 #7F51C4

triadic

#515DC4 #C4515D #5DC451

tetradic

#515DC4 #C45197 #C4B851 #51C47F

square

#515DC4 #C45197 #C4B851 #51C47F

split-complementary

#515DC4 #C47F51 #97C451

monochromatic

#272F73 #3742A1 #515DC4 #7F88D3 #ACB2E3

Accessibility & contrast

On white

5.66

#515DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#515DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DC4

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DC4	#FFFFFF	#000000	##FFFFFF
##515DC4	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#206CC8

Deuteranopia (green-blind)

#0062C2

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515dc4;
/* rgb */ color: rgb(81, 93, 196);
/* oklch */ color: oklch(52.4% 0.159 274.5);

Tailwind

colors: {
  custom: {
    50: '#8c8ad6',
    500: '#515dc4',
    950: '#000000',
  },
}

SCSS

$custom: #515dc4;
$custom-light: #8c8ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#515dc4",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 196
  },
  "hsl": {
    "h": 233.739,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52396,
    "c": 0.15936,
    "h": 274.5
  },
  "luminance": 0.13564
}

Semantic roles & 50–950 ramp

primary

#515DC4

secondary

#D1CCA0

accent

#CA4FD9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515DC4

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

Preview Lab → · Contrast checker → · Palette generator →