#515BCC#515BCC

#515BCC is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.173 H 274.9°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#515BCC
RGB	rgb(81, 91, 204)
HSL	hsl(235, 55%, 56%)
HSV	hsv(235, 60%, 80%)
CMYK	cmyk(60.3%, 55.4%, 0%, 20%)
CIE-LAB	lab(43.64, 30.23, -60.03)
CIE-LCH	lch(43.64, 67.21, 296.73°)
OKLab	oklab(52.6% 0.0149 -0.1723)
OKLCH	oklch(52.6% 0.173 274.9)
XYZ	xyz(18.0299, 13.5897, 58.7880)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BCC #CCC251

analogous

#5198CC #515BCC #8451CC

triadic

#515BCC #CC515B #5BCC51

tetradic

#515BCC #CC5198 #CCC251 #51CC84

square

#515BCC #CC5198 #CCC251 #51CC84

split-complementary

#515BCC #CC8451 #98CC51

monochromatic

#252C7E #333DAD #515BCC #8088DA #B0B4E8

Accessibility & contrast

On white

5.65

#515BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#515BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BCC

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BCC	#FFFFFF	#000000	##FFFFFF
##515BCC	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD0

Deuteranopia (green-blind)

#0062CA

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515bcc;
/* rgb */ color: rgb(81, 91, 204);
/* oklch */ color: oklch(52.6% 0.173 274.9);

Tailwind

colors: {
  custom: {
    50: '#8d89dc',
    500: '#515bcc',
    950: '#000000',
  },
}

SCSS

$custom: #515bcc;
$custom-light: #8d89dc;
$custom-dark: #000000;

JSON

{
  "hex": "#515bcc",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 204
  },
  "hsl": {
    "h": 235.122,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.526,
    "c": 0.17293,
    "h": 274.9
  },
  "luminance": 0.13591
}

Semantic roles & 50–950 ramp

primary

#515BCC

secondary

#D6D2A3

accent

#D24ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515BCC

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

Preview Lab → · Contrast checker → · Palette generator →