#515BC3#515BC3

#515BC3 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.161 H 275.2°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#515BC3
RGB	rgb(81, 91, 195)
HSL	hsl(235, 49%, 54%)
HSV	hsv(235, 58%, 76%)
CMYK	cmyk(58.5%, 53.3%, 0%, 23.5%)
CIE-LAB	lab(43.02, 27.22, -55.83)
CIE-LCH	lch(43.02, 62.11, 295.99°)
OKLab	oklab(51.94% 0.0145 -0.1599)
OKLCH	oklch(51.94% 0.161 275.2)
XYZ	xyz(16.9816, 13.1704, 53.2664)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC3 #C3B951

analogous

#5194C3 #515BC3 #8051C3

triadic

#515BC3 #C3515B #5BC351

tetradic

#515BC3 #C35194 #C3B951 #51C380

square

#515BC3 #C35194 #C3B951 #51C380

split-complementary

#515BC3 #C38051 #94C351

monochromatic

#272E72 #3740A0 #515BC3 #7F86D3 #ACB1E2

Accessibility & contrast

On white

5.78

#515BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#515BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC3

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC3	#FFFFFF	#000000	##FFFFFF
##515BC3	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6BC7

Deuteranopia (green-blind)

#0061C1

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515bc3;
/* rgb */ color: rgb(81, 91, 195);
/* oklch */ color: oklch(51.9% 0.161 275.2);

Tailwind

colors: {
  custom: {
    50: '#8c89d6',
    500: '#515bc3',
    950: '#000000',
  },
}

SCSS

$custom: #515bc3;
$custom-light: #8c89d6;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc3",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 195
  },
  "hsl": {
    "h": 234.737,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.51939,
    "c": 0.1606,
    "h": 275.2
  },
  "luminance": 0.13172
}

Semantic roles & 50–950 ramp

primary

#515BC3

secondary

#D0CCA0

accent

#CC50D8

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515BC3

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

Preview Lab → · Contrast checker → · Palette generator →