#515BC6#515BC6

#515BC6 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.2% C 0.165 H 275.1°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#515BC6
RGB	rgb(81, 91, 198)
HSL	hsl(235, 51%, 55%)
HSV	hsv(235, 59%, 78%)
CMYK	cmyk(59.1%, 54%, 0%, 22.4%)
CIE-LAB	lab(43.22, 28.22, -57.24)
CIE-LCH	lch(43.22, 63.82, 296.24°)
OKLab	oklab(52.16% 0.0147 -0.1641)
OKLCH	oklch(52.16% 0.165 275.1)
XYZ	xyz(17.3242, 13.3074, 55.0708)
Luminance	0.1331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC6 #C6BC51

analogous

#5195C6 #515BC6 #8251C6

triadic

#515BC6 #C6515B #5BC651

tetradic

#515BC6 #C65195 #C6BC51 #51C682

square

#515BC6 #C65195 #C6BC51 #51C682

split-complementary

#515BC6 #C68251 #95C651

monochromatic

#272D76 #363FA4 #515BC6 #7F86D5 #ADB2E4

Accessibility & contrast

On white

5.73

#515BC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#515BC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC6

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC6	#FFFFFF	#000000	##FFFFFF
##515BC6	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146BCA

Deuteranopia (green-blind)

#0061C4

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515bc6;
/* rgb */ color: rgb(81, 91, 198);
/* oklch */ color: oklch(52.2% 0.165 275.1);

Tailwind

colors: {
  custom: {
    50: '#8c89d8',
    500: '#515bc6',
    950: '#000000',
  },
}

SCSS

$custom: #515bc6;
$custom-light: #8c89d8;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc6",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 198
  },
  "hsl": {
    "h": 234.872,
    "s": 50.649,
    "l": 54.706
  },
  "oklch": {
    "l": 0.52157,
    "c": 0.16474,
    "h": 275.1
  },
  "luminance": 0.13309
}

Semantic roles & 50–950 ramp

primary

#515BC6

secondary

#D2CEA1

accent

#CE4EDA

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515BC6

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

Preview Lab → · Contrast checker → · Palette generator →