#515BC4#515BC4

#515BC4 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.0% C 0.162 H 275.2°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#515BC4
RGB	rgb(81, 91, 196)
HSL	hsl(235, 49%, 54%)
HSV	hsv(235, 59%, 77%)
CMYK	cmyk(58.7%, 53.6%, 0%, 23.1%)
CIE-LAB	lab(43.09, 27.55, -56.30)
CIE-LCH	lch(43.09, 62.68, 296.08°)
OKLab	oklab(52.01% 0.0146 -0.1613)
OKLCH	oklch(52.01% 0.162 275.2)
XYZ	xyz(17.0950, 13.2157, 53.8639)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC4 #C4BA51

analogous

#5194C4 #515BC4 #8151C4

triadic

#515BC4 #C4515B #5BC451

tetradic

#515BC4 #C45194 #C4BA51 #51C481

square

#515BC4 #C45194 #C4BA51 #51C481

split-complementary

#515BC4 #C48151 #94C451

monochromatic

#272E73 #3740A1 #515BC4 #7F86D3 #ACB1E3

Accessibility & contrast

On white

5.76

#515BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#515BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC4

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC4	#FFFFFF	#000000	##FFFFFF
##515BC4	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#196BC8

Deuteranopia (green-blind)

#0061C2

Tritanopia (blue-blind)

#007387

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515bc4;
/* rgb */ color: rgb(81, 91, 196);
/* oklch */ color: oklch(52.0% 0.162 275.2);

Tailwind

colors: {
  custom: {
    50: '#8c89d7',
    500: '#515bc4',
    950: '#000000',
  },
}

SCSS

$custom: #515bc4;
$custom-light: #8c89d7;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc4",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 196
  },
  "hsl": {
    "h": 234.783,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52011,
    "c": 0.16199,
    "h": 275.2
  },
  "luminance": 0.13217
}

Semantic roles & 50–950 ramp

primary

#515BC4

secondary

#D1CDA0

accent

#CD4FD9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515BC4

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

Preview Lab → · Contrast checker → · Palette generator →