#515BC7#515BC7

#515BC7 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.2% C 0.166 H 275.1°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#515BC7
RGB	rgb(81, 91, 199)
HSL	hsl(235, 51%, 55%)
HSV	hsv(235, 59%, 78%)
CMYK	cmyk(59.3%, 54.3%, 0%, 22%)
CIE-LAB	lab(43.29, 28.56, -57.71)
CIE-LCH	lch(43.29, 64.39, 296.33°)
OKLab	oklab(52.23% 0.0147 -0.1655)
OKLCH	oklch(52.23% 0.166 275.1)
XYZ	xyz(17.4399, 13.3537, 55.6803)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC7 #C7BD51

analogous

#5196C7 #515BC7 #8251C7

triadic

#515BC7 #C7515B #5BC751

tetradic

#515BC7 #C75196 #C7BD51 #51C782

square

#515BC7 #C75196 #C7BD51 #51C782

split-complementary

#515BC7 #C78251 #96C751

monochromatic

#262D77 #353FA6 #515BC7 #7F87D6 #AEB2E5

Accessibility & contrast

On white

5.72

#515BC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#515BC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC7

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC7	#FFFFFF	#000000	##FFFFFF
##515BC7	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#116BCB

Deuteranopia (green-blind)

#0061C5

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515bc7;
/* rgb */ color: rgb(81, 91, 199);
/* oklch */ color: oklch(52.2% 0.166 275.1);

Tailwind

colors: {
  custom: {
    50: '#8c89d9',
    500: '#515bc7',
    950: '#000000',
  },
}

SCSS

$custom: #515bc7;
$custom-light: #8c89d9;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc7",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 199
  },
  "hsl": {
    "h": 234.915,
    "s": 51.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.5223,
    "c": 0.16611,
    "h": 275.1
  },
  "luminance": 0.13355
}

Semantic roles & 50–950 ramp

primary

#515BC7

secondary

#D3CFA1

accent

#CF4DDB

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515BC7

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

Preview Lab → · Contrast checker → · Palette generator →