#515DCC#515DCC

#515DCC is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.0% C 0.170 H 274.4°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#515DCC
RGB	rgb(81, 93, 204)
HSL	hsl(234, 55%, 56%)
HSV	hsv(234, 60%, 80%)
CMYK	cmyk(60.3%, 54.4%, 0%, 20%)
CIE-LAB	lab(44.14, 28.98, -59.22)
CIE-LCH	lch(44.14, 65.93, 296.07°)
OKLab	oklab(52.98% 0.013 -0.1699)
OKLCH	oklch(52.98% 0.17 274.4)
XYZ	xyz(18.2032, 13.9362, 58.8457)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DCC #CCC051

analogous

#519ACC #515DCC #8251CC

triadic

#515DCC #CC515D #5DCC51

tetradic

#515DCC #CC519A #CCC051 #51CC82

square

#515DCC #CC519A #CCC051 #51CC82

split-complementary

#515DCC #CC8251 #9ACC51

monochromatic

#252E7E #333FAD #515DCC #8089DA #B0B5E8

Accessibility & contrast

On white

5.54

#515DCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#515DCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DCC

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DCC	#FFFFFF	#000000	##FFFFFF
##515DCC	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D6ED0

Deuteranopia (green-blind)

#0063CA

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515dcc;
/* rgb */ color: rgb(81, 93, 204);
/* oklch */ color: oklch(53.0% 0.170 274.4);

Tailwind

colors: {
  custom: {
    50: '#8d8adc',
    500: '#515dcc',
    950: '#000000',
  },
}

SCSS

$custom: #515dcc;
$custom-light: #8d8adc;
$custom-dark: #000000;

JSON

{
  "hex": "#515dcc",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 204
  },
  "hsl": {
    "h": 234.146,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.52976,
    "c": 0.17038,
    "h": 274.4
  },
  "luminance": 0.13938
}

Semantic roles & 50–950 ramp

primary

#515DCC

secondary

#D6D1A3

accent

#D04ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515DCC

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

Preview Lab → · Contrast checker → · Palette generator →