#517BC7#517BC7

#517BC7 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.126 H 261.4°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#517BC7
RGB	rgb(81, 123, 199)
HSL	hsl(219, 51%, 55%)
HSV	hsv(219, 59%, 78%)
CMYK	cmyk(59.3%, 38.2%, 0%, 22%)
CIE-LAB	lab(51.88, 8.64, -43.96)
CIE-LCH	lch(51.88, 44.80, 281.12°)
OKLab	oklab(58.78% -0.0188 -0.1247)
OKLCH	oklch(58.78% 0.126 261.4)
XYZ	xyz(20.7815, 20.0370, 56.7941)
Luminance	0.2004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BC7 #C79D51

analogous

#51B6C7 #517BC7 #6251C7

triadic

#517BC7 #C7517B #7BC751

tetradic

#517BC7 #C751B6 #C79D51 #51C762

square

#517BC7 #C751B6 #C79D51 #51C762

split-complementary

#517BC7 #C76251 #B6C751

monochromatic

#264377 #355DA6 #517BC7 #7F9ED6 #AEC1E5

Accessibility & contrast

On white

4.19

#517BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#517BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BC7

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BC7	#FFFFFF	#000000	##000000
##517BC7	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B82CA

Deuteranopia (green-blind)

#4B77C5

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #517bc7;
/* rgb */ color: rgb(81, 123, 199);
/* oklch */ color: oklch(58.8% 0.126 261.4);

Tailwind

colors: {
  custom: {
    50: '#8ba0d8',
    500: '#517bc7',
    950: '#000000',
  },
}

SCSS

$custom: #517bc7;
$custom-light: #8ba0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#517bc7",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 199
  },
  "hsl": {
    "h": 218.644,
    "s": 51.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58782,
    "c": 0.12614,
    "h": 261.4
  },
  "luminance": 0.20039
}

Semantic roles & 50–950 ramp

primary

#517BC7

secondary

#D3C1A1

accent

#A84DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #517BC7

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

Preview Lab → · Contrast checker → · Palette generator →