#517BC1#517BC1

#517BC1 is a mid, moderate blue. Relative luminance 0.198; OKLCH L 58.4% C 0.118 H 260.1°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#517BC1
RGB	rgb(81, 123, 193)
HSL	hsl(218, 47%, 54%)
HSV	hsv(218, 58%, 76%)
CMYK	cmyk(58%, 36.3%, 0%, 24.3%)
CIE-LAB	lab(51.57, 6.64, -41.02)
CIE-LCH	lch(51.57, 41.56, 279.19°)
OKLab	oklab(58.44% -0.0202 -0.1161)
OKLCH	oklch(58.44% 0.118 260.1)
XYZ	xyz(20.0986, 19.7638, 53.1974)
Luminance	0.1977 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BC1 #C19751

analogous

#51B3C1 #517BC1 #5F51C1

triadic

#517BC1 #C1517B #7BC151

tetradic

#517BC1 #C151B3 #C19751 #51C15F

square

#517BC1 #C151B3 #C19751 #51C15F

split-complementary

#517BC1 #C15F51 #B3C151

monochromatic

#284370 #385E9D #517BC1 #7E9DD1 #ABBFE1

Accessibility & contrast

On white

4.24

#517BC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#517BC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BC1

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BC1	#FFFFFF	#000000	##000000
##517BC1	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E81C4

Deuteranopia (green-blind)

#4F76C0

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #517bc1;
/* rgb */ color: rgb(81, 123, 193);
/* oklch */ color: oklch(58.4% 0.118 260.1);

Tailwind

colors: {
  custom: {
    50: '#8aa0d4',
    500: '#517bc1',
    950: '#000000',
  },
}

SCSS

$custom: #517bc1;
$custom-light: #8aa0d4;
$custom-dark: #000000;

JSON

{
  "hex": "#517bc1",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 193
  },
  "hsl": {
    "h": 217.5,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5844,
    "c": 0.11789,
    "h": 260.1
  },
  "luminance": 0.19766
}

Semantic roles & 50–950 ramp

primary

#517BC1

secondary

#CFBD9F

accent

#A551D7

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #517BC1

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

Preview Lab → · Contrast checker → · Palette generator →