#517DC7#517DC7

#517DC7 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.2% C 0.124 H 260.3°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#517DC7
RGB	rgb(81, 125, 199)
HSL	hsl(218, 51%, 55%)
HSV	hsv(218, 59%, 78%)
CMYK	cmyk(59.3%, 37.2%, 0%, 22%)
CIE-LAB	lab(52.44, 7.42, -43.07)
CIE-LCH	lch(52.44, 43.71, 279.78°)
OKLab	oklab(59.22% -0.021 -0.1221)
OKLCH	oklch(59.22% 0.124 260.3)
XYZ	xyz(21.0322, 20.5383, 56.8777)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DC7 #C79B51

analogous

#51B8C7 #517DC7 #6051C7

triadic

#517DC7 #C7517D #7DC751

tetradic

#517DC7 #C751B8 #C79B51 #51C760

square

#517DC7 #C751B8 #C79B51 #51C760

split-complementary

#517DC7 #C76051 #B8C751

monochromatic

#264577 #355FA6 #517DC7 #7FA0D6 #AEC2E5

Accessibility & contrast

On white

4.11

#517DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#517DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DC7

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DC7	#FFFFFF	#000000	##000000
##517DC7	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E83CA

Deuteranopia (green-blind)

#4E78C5

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517dc7;
/* rgb */ color: rgb(81, 125, 199);
/* oklch */ color: oklch(59.2% 0.124 260.3);

Tailwind

colors: {
  custom: {
    50: '#8ba2d8',
    500: '#517dc7',
    950: '#000000',
  },
}

SCSS

$custom: #517dc7;
$custom-light: #8ba2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#517dc7",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 199
  },
  "hsl": {
    "h": 217.627,
    "s": 51.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59218,
    "c": 0.1239,
    "h": 260.3
  },
  "luminance": 0.2054
}

Semantic roles & 50–950 ramp

primary

#517DC7

secondary

#D3C0A1

accent

#A64DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #517DC7

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

Preview Lab → · Contrast checker → · Palette generator →