#515BC9#515BC9

#515BC9 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.4% C 0.169 H 275.0°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#515BC9
RGB	rgb(81, 91, 201)
HSL	hsl(235, 53%, 55%)
HSV	hsv(235, 60%, 79%)
CMYK	cmyk(59.7%, 54.7%, 0%, 21.2%)
CIE-LAB	lab(43.43, 29.22, -58.64)
CIE-LCH	lch(43.43, 65.52, 296.49°)
OKLab	oklab(52.38% 0.0148 -0.1682)
OKLCH	oklch(52.38% 0.169 275)
XYZ	xyz(17.6736, 13.4472, 56.9112)
Luminance	0.1345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC9 #C9BF51

analogous

#5197C9 #515BC9 #8351C9

triadic

#515BC9 #C9515B #5BC951

tetradic

#515BC9 #C95197 #C9BF51 #51C983

square

#515BC9 #C95197 #C9BF51 #51C983

split-complementary

#515BC9 #C98351 #97C951

monochromatic

#262D7A #343EA9 #515BC9 #8087D7 #AEB3E6

Accessibility & contrast

On white

5.69

#515BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#515BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC9

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC9	#FFFFFF	#000000	##FFFFFF
##515BC9	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A6CCD

Deuteranopia (green-blind)

#0062C7

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515bc9;
/* rgb */ color: rgb(81, 91, 201);
/* oklch */ color: oklch(52.4% 0.169 275.0);

Tailwind

colors: {
  custom: {
    50: '#8d89da',
    500: '#515bc9',
    950: '#000000',
  },
}

SCSS

$custom: #515bc9;
$custom-light: #8d89da;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc9",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 201
  },
  "hsl": {
    "h": 235,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52377,
    "c": 0.16885,
    "h": 275
  },
  "luminance": 0.13449
}

Semantic roles & 50–950 ramp

primary

#515BC9

secondary

#D4D0A2

accent

#D04CDC

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515BC9

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

Preview Lab → · Contrast checker → · Palette generator →